Iterate through the string, and use charAt() to get the char. Then treat it as an int, and see if it has a unicode value (a superset of ASCII) which you like.
Break at the first you don't like.
In HTML, the <br/>
tag breaks the line. So, there's no sense to use an ASCII character for it.
In CSS we can use \A
for line break:
.selector::after{
content: '\A';
}
But if you want to display <br>
in the HTML as text then you can use:
<br> // < denotes to < sign and > denotes to > sign
according to http://mylinuxbook.com/hexdump/ you might use the hexdump format parameter
echo Aa | hexdump -C -e '/1 "%02X"'
will return 4161
to add an extra linefeed at the end, append another formatter.
BUT: the format given above will give multiplier outputs for repetitive characters
$ printf "Hello" | hexdump -e '/1 "%02X"'
48656C*
6F
instead of
48656c6c6f
Here it is:
[chr(i) for i in xrange(127)]
data="UTF-8 DATA"
udata=data.decode("utf-8")
asciidata=udata.encode("ascii","ignore")
For anyone who likes Extension methods, this one does the trick for us.
using System.Text;
namespace System
{
public static class StringExtension
{
private static readonly ASCIIEncoding asciiEncoding = new ASCIIEncoding();
public static string ToAscii(this string dirty)
{
byte[] bytes = asciiEncoding.GetBytes(dirty);
string clean = asciiEncoding.GetString(bytes);
return clean;
}
}
}
(System namespace so it's available pretty much automatically for all of our strings.)
An easy way to change to a different codec, is by using encode() or decode(). In your case, you want to convert to ASCII and ignore all symbols that are not supported. For example, the Swedish letter å is not an ASCII character:
>>>s = u'Good bye in Swedish is Hej d\xe5'
>>>s = s.encode('ascii',errors='ignore')
>>>print s
Good bye in Swedish is Hej d
Edit:
Python3: str -> bytes -> str
>>>"Hej då".encode("ascii", errors="ignore").decode()
'hej d'
Python2: unicode -> str -> unicode
>>> u"hej då".encode("ascii", errors="ignore").decode()
u'hej d'
Python2: str -> unicode -> str (decode and encode in reverse order)
>>> "hej d\xe5".decode("ascii", errors="ignore").encode()
'hej d'
Try this:
/**
* @(#)demo1.java
*
*
* @author
* @version 1.00 2012/8/30
*/
import java.util.*;
public class demo1
{
Scanner s=new Scanner(System.in);
String str;
int key;
void getdata()
{
System.out.println ("plase enter a string");
str=s.next();
System.out.println ("plase enter a key");
key=s.nextInt();
}
void display()
{
char a;
int j;
for ( int i = 0; i < str.length(); ++i )
{
char c = str.charAt( i );
j = (int) c + key;
a= (char) j;
System.out.print(a);
}
public static void main(String[] args)
{
demo1 obj=new demo1();
obj.getdata();
obj.display();
}
}
}
For a string of length 1 you can simply perform isdigit()
or isalpha()
If your string length is greater than 1, you can make a function something like..
def isinteger(a):
try:
int(a)
return True
except ValueError:
return False
For ASCII characters in the range [ -~]
on Python 2:
>>> import binascii
>>> bin(int(binascii.hexlify('hello'), 16))
'0b110100001100101011011000110110001101111'
In reverse:
>>> n = int('0b110100001100101011011000110110001101111', 2)
>>> binascii.unhexlify('%x' % n)
'hello'
In Python 3.2+:
>>> bin(int.from_bytes('hello'.encode(), 'big'))
'0b110100001100101011011000110110001101111'
In reverse:
>>> n = int('0b110100001100101011011000110110001101111', 2)
>>> n.to_bytes((n.bit_length() + 7) // 8, 'big').decode()
'hello'
def text_to_bits(text, encoding='utf-8', errors='surrogatepass'):
bits = bin(int.from_bytes(text.encode(encoding, errors), 'big'))[2:]
return bits.zfill(8 * ((len(bits) + 7) // 8))
def text_from_bits(bits, encoding='utf-8', errors='surrogatepass'):
n = int(bits, 2)
return n.to_bytes((n.bit_length() + 7) // 8, 'big').decode(encoding, errors) or '\0'
import binascii
def text_to_bits(text, encoding='utf-8', errors='surrogatepass'):
bits = bin(int(binascii.hexlify(text.encode(encoding, errors)), 16))[2:]
return bits.zfill(8 * ((len(bits) + 7) // 8))
def text_from_bits(bits, encoding='utf-8', errors='surrogatepass'):
n = int(bits, 2)
return int2bytes(n).decode(encoding, errors)
def int2bytes(i):
hex_string = '%x' % i
n = len(hex_string)
return binascii.unhexlify(hex_string.zfill(n + (n & 1)))
>>> text_to_bits('hello')
'0110100001100101011011000110110001101111'
>>> text_from_bits('110100001100101011011000110110001101111') == u'hello'
True
An easier way of doing the same:
Type cast integer to character, let int n
be the integer,
then:
Char c=(char)n;
System.out.print(c)//char c will store the converted value.
Use hex(id)[2:]
and int(urlpart, 16)
. There are other options. base32 encoding your id could work as well, but I don't know that there's any library that does base32 encoding built into Python.
Apparently a base32 encoder was introduced in Python 2.4 with the base64 module. You might try using b32encode
and b32decode
. You should give True
for both the casefold
and map01
options to b32decode
in case people write down your shortened URLs.
Actually, I take that back. I still think base32 encoding is a good idea, but that module is not useful for the case of URL shortening. You could look at the implementation in the module and make your own for this specific case. :-)
Potentially for a different question, but I'm providing my version of @Alvero's answer (using unidecode). I want to do a "regular" strip on my strings, i.e. the beginning and end of my string for whitespace characters, and then replace only other whitespace characters with a "regular" space, i.e.
"Ceñía?mañana????"
to
"Ceñía mañana"
,
def safely_stripped(s: str):
return ' '.join(
stripped for stripped in
(bit.strip() for bit in
''.join((c if unidecode(c) else ' ') for c in s).strip().split())
if stripped)
We first replace all non-unicode spaces with a regular space (and join it back again),
''.join((c if unidecode(c) else ' ') for c in s)
And then we split that again, with python's normal split, and strip each "bit",
(bit.strip() for bit in s.split())
And lastly join those back again, but only if the string passes an if
test,
' '.join(stripped for stripped in s if stripped)
And with that, safely_stripped('????Ceñía?mañana????')
correctly returns 'Ceñía mañana'
.
This might help
import binascii
x = b'test'
x = binascii.hexlify(x)
y = str(x,'ascii')
print(x) # Outputs b'74657374' (hex encoding of "test")
print(y) # Outputs 74657374
x_unhexed = binascii.unhexlify(x)
print(x_unhexed) # Outputs b'test'
x_ascii = str(x_unhexed,'ascii')
print(x_ascii) # Outputs test
This code contains examples for converting ASCII characters to and from hexadecimal. In your situation, the line you'd want to use is str(binascii.hexlify(c),'ascii')
.
Other answers are correct -- whether a character is invisible or not depends on what font you use. This seems to be a pretty good list to me of characters that are truly invisible (not even space). It contains some chars that the other lists are missing.
'\u2060', // Word Joiner
'\u2061', // FUNCTION APPLICATION
'\u2062', // INVISIBLE TIMES
'\u2063', // INVISIBLE SEPARATOR
'\u2064', // INVISIBLE PLUS
'\u2066', // LEFT - TO - RIGHT ISOLATE
'\u2067', // RIGHT - TO - LEFT ISOLATE
'\u2068', // FIRST STRONG ISOLATE
'\u2069', // POP DIRECTIONAL ISOLATE
'\u206A', // INHIBIT SYMMETRIC SWAPPING
'\u206B', // ACTIVATE SYMMETRIC SWAPPING
'\u206C', // INHIBIT ARABIC FORM SHAPING
'\u206D', // ACTIVATE ARABIC FORM SHAPING
'\u206E', // NATIONAL DIGIT SHAPES
'\u206F', // NOMINAL DIGIT SHAPES
'\u200B', // Zero-Width Space
'\u200C', // Zero Width Non-Joiner
'\u200D', // Zero Width Joiner
'\u200E', // Left-To-Right Mark
'\u200F', // Right-To-Left Mark
'\u061C', // Arabic Letter Mark
'\uFEFF', // Byte Order Mark
'\u180E', // Mongolian Vowel Separator
'\u00AD' // soft-hyphen
Most of the time this compile error comes when unicode(UTF-8 encoded) file compiling
javac -encoding UTF-8 HelloWorld.java
and also You can add this compile option to your IDE
ex: Intellij idea
(File>settings>Java Compiler) add as additional command line parameter
-encoding : encoding Set the source file encoding name, such as EUC-JP and UTF-8.. If -encoding is not specified, the platform default converter is used. (DOC)
You can assign int
to char
directly.
int a = 65;
char c = a;
printf("%c", c);
In fact this will also work.
printf("%c", a); // assuming a is in valid range
You can use one of these methods to convert number to an ASCII / Unicode / UTF-16 character:
You can use these methods convert the value of the specified 32-bit signed integer to its Unicode character:
char c = (char)65;
char c = Convert.ToChar(65);
Also, ASCII.GetString
decodes a range of bytes from a byte array into a string:
string s = Encoding.ASCII.GetString(new byte[]{ 65 });
Keep in mind that, ASCIIEncoding
does not provide error detection. Any byte greater than hexadecimal 0x7F is decoded as the Unicode question mark ("?").
In Python 2:
>>> "7061756c".decode("hex")
'paul'
In Python 3:
>>> bytes.fromhex('7061756c').decode('utf-8')
'paul'
Given numbers are only for storing 1 character
I use ? and ?, but they might not work for you. I use alt 11551 for the first one and 11550 for the second one. You can always copy paste them if the ascii isnt the same for your system.
They are exactly the same character. See: http://en.wikipedia.org/wiki/Dash
Barring browser bugs they will display the same in all cases, so the only difference would be concerning code readability, which would point to —
.
Or, if you are using UTF-8 as a charset in your HTML document, you could enter the character directly. That would also display exactly the same.
int no=44;
String bNo=Integer.toString(no,2);//binary output 101100
String oNo=Integer.toString(no,8);//Oct output 54
String hNo=Integer.toString(no,16);//Hex output 2C
String bNo1= Integer.toBinaryString(no);//binary output 101100
String oNo1=Integer.toOctalString(no);//Oct output 54
String hNo1=Integer.toHexString(no);//Hex output 2C
String sBNo="101100";
no=Integer.parseInt(sBNo,2);//binary to int output 44
String sONo="54";
no=Integer.parseInt(sONo,8);//oct to int output 44
String sHNo="2C";
no=Integer.parseInt(sHNo,16);//hex to int output 44
Use the ASCII to Integer atoi()
function which accepts a string and converts it into an integer:
#include <stdlib.h>
int num = atoi("23"); // 23
If the string contains a decimal, the number will be truncated:
int num = atoi("23.21"); // 23
No. EOF is not a character, but a state of the filehandle.
While there are there are control characters in the ASCII charset that represents the end of the data, these are not used to signal the end of files in general. For example EOT (^D) which in some cases almost signals the same.
When the standard C library uses signed integer to return characters and uses -1 for end of file, this is actually just the signal to indicate than an error happened. I don't have the C standard available, but to quote SUSv3:
If the end-of-file indicator for the stream is set, or if the stream is at end-of-file, the end-of-file indicator for the stream shall be set and fgetc() shall return EOF. If a read error occurs, the error indicator for the stream shall be set, fgetc() shall return EOF, and shall set errno to indicate the error.
It's simple, get the character you want, and convert it to int.
String name = "admin";
int ascii = name.charAt(0);
I think this code may be help you:
string str = char.ConvertFromUtf32(65)
One option is to directly input the character you're interested in using hex or octal notation:
printf "\x41\n"
printf "\101\n"
A PROGRAM TO CONVERT INT INTO ASCII.
#include<stdio.h>
#include<string.h>
#include<conio.h>
char data[1000]= {' '}; /*thing in the bracket is optional*/
char data1[1000]={' '};
int val, a;
char varray [9];
void binary (int digit)
{
if(digit==0)
val=48;
if(digit==1)
val=49;
if(digit==2)
val=50;
if(digit==3)
val=51;
if(digit==4)
val=52;
if(digit==5)
val=53;
if(digit==6)
val=54;
if(digit==7)
val=55;
if(digit==8)
val=56;
if(digit==9)
val=57;
a=0;
while(val!=0)
{
if(val%2==0)
{
varray[a]= '0';
}
else
varray[a]='1';
val=val/2;
a++;
}
while(a!=7)
{
varray[a]='0';
a++;
}
varray [8] = NULL;
strrev (varray);
strcpy (data1,varray);
strcat (data1,data);
strcpy (data,data1);
}
void main()
{
int num;
clrscr();
printf("enter number\n");
scanf("%d",&num);
if(num==0)
binary(0);
else
while(num>0)
{
binary(num%10);
num=num/10;
}
puts(data);
getch();
}
I check my coding and its working good.let me know if its helpful.thanks.
you can use character classes
/[[:cntrl:]]+/
To convert an int
ASCII value to character you can also use:
int asciiValue = 65;
char character = char(asciiValue);
cout << character; // output: A
cout << char(90); // output: Z
Do you really mean u'String'
?
In any event, can't you just do str(string)
to get a string rather than a unicode-string? (This should be different for Python 3, for which all strings are unicode.)
Here is the example:
var charCode = "a".charCodeAt(0);_x000D_
console.log(charCode);
_x000D_
Or if you have longer strings:
var string = "Some string";_x000D_
_x000D_
for (var i = 0; i < string.length; i++) {_x000D_
console.log(string.charCodeAt(i));_x000D_
}
_x000D_
String.charCodeAt(x)
method will return ASCII character code at a given position.
You can use something of the form
s.decode('utf-8')
which will convert a UTF-8 encoded bytestring into a Python Unicode string. But the exact procedure to use depends on exactly how you load and parse the XML file, e.g. if you don't ever access the XML string directly, you might have to use a decoder object from the codecs
module.
If you are using python 3 or above,
>>> list(bytes(b'test'))
[116, 101, 115, 116]
Here's an alternative since you don't like the cast to int:
foreach(byte b in System.Text.Encoding.UTF8.GetBytes(str.ToCharArray()))
Console.Write(b.ToString());
You can use this regex:
[^\w \xC0-\xFF]
Case ask, the options is Multiline.
The Chr
function in VB.NET converts the integer back to the character:
Dim i As Integer = Asc("x") ' Convert to ASCII integer.
Dim x As Char = Chr(i) ' Convert ASCII integer to char.
The ascii values of the:
Up key - 224 72
Down key - 224 80
Left key - 224 75
Right key - 224 77
Each of these has two integer values for ascii value, because they are special keys, as opposed to the code for $, which is simply 36. These 2 byte special keys usually have the first digit as either 224, or 0. this can be found with the F# in windows, or the delete key.
EDIT : This may actually be unicode looking back, but they do work.
We show up two functions that prints a SINGLE character to binary.
void printbinchar(char character)
{
char output[9];
itoa(character, output, 2);
printf("%s\n", output);
}
printbinchar(10) will write into the console
1010
itoa is a library function that converts a single integer value to a string with the specified base. For example... itoa(1341, output, 10) will write in output string "1341". And of course itoa(9, output, 2) will write in the output string "1001".
The next function will print into the standard output the full binary representation of a character, that is, it will print all 8 bits, also if the higher bits are zero.
void printbincharpad(char c)
{
for (int i = 7; i >= 0; --i)
{
putchar( (c & (1 << i)) ? '1' : '0' );
}
putchar('\n');
}
printbincharpad(10) will write into the console
00001010
Now i present a function that prints out an entire string (without last null character).
void printstringasbinary(char* s)
{
// A small 9 characters buffer we use to perform the conversion
char output[9];
// Until the first character pointed by s is not a null character
// that indicates end of string...
while (*s)
{
// Convert the first character of the string to binary using itoa.
// Characters in c are just 8 bit integers, at least, in noawdays computers.
itoa(*s, output, 2);
// print out our string and let's write a new line.
puts(output);
// we advance our string by one character,
// If our original string was "ABC" now we are pointing at "BC".
++s;
}
}
Consider however that itoa don't adds padding zeroes, so printstringasbinary("AB1") will print something like:
1000001
1000010
110001
The methods within org.apache.commons.io.FileUtils
may also be very handy, e.g.:
/**
* Reads the contents of a file line by line to a List
* of Strings using the default encoding for the VM.
*/
static List readLines(File file)
A sting (str
-type) in Python is a series of bytes. There is no way of telling just from looking at the string whether this series of bytes represent an ascii string, a string in a 8-bit charset like ISO-8859-1 or a string encoded with UTF-8 or UTF-16 or whatever.
However if you know the encoding used, then you can decode
the str into a unicode string and then use a regular expression (or a loop) to check if it contains characters outside of the range you are concerned about.
Your first mistake is thinking that ASCII encoding and Base64 encoding are interchangeable. They are not. They are used for different purposes.
To understand why Base64 was necessary in the first place we need a little history of computing.
Computers communicate in binary - 0s and 1s - but people typically want to communicate with more rich forms data such as text or images. In order to transfer this data between computers it first has to be encoded into 0s and 1s, sent, then decoded again. To take text as an example - there are many different ways to perform this encoding. It would be much simpler if we could all agree on a single encoding, but sadly this is not the case.
Originally a lot of different encodings were created (e.g. Baudot code) which used a different number of bits per character until eventually ASCII became a standard with 7 bits per character. However most computers store binary data in bytes consisting of 8 bits each so ASCII is unsuitable for tranferring this type of data. Some systems would even wipe the most significant bit. Furthermore the difference in line ending encodings across systems mean that the ASCII character 10 and 13 were also sometimes modified.
To solve these problems Base64 encoding was introduced. This allows you to encode arbitrary bytes to bytes which are known to be safe to send without getting corrupted (ASCII alphanumeric characters and a couple of symbols). The disadvantage is that encoding the message using Base64 increases its length - every 3 bytes of data is encoded to 4 ASCII characters.
To send text reliably you can first encode to bytes using a text encoding of your choice (for example UTF-8) and then afterwards Base64 encode the resulting binary data into a text string that is safe to send encoded as ASCII. The receiver will have to reverse this process to recover the original message. This of course requires that the receiver knows which encodings were used, and this information often needs to be sent separately.
Historically it has been used to encode binary data in email messages where the email server might modify line-endings. A more modern example is the use of Base64 encoding to embed image data directly in HTML source code. Here it is necessary to encode the data to avoid characters like '<' and '>' being interpreted as tags.
Here is a working example:
I wish to send a text message with two lines:
Hello world!
If I send it as ASCII (or UTF-8) it will look like this:
72 101 108 108 111 10 119 111 114 108 100 33
The byte 10 is corrupted in some systems so we can base 64 encode these bytes as a Base64 string:
SGVsbG8Kd29ybGQh
Which when encoded using ASCII looks like this:
83 71 86 115 98 71 56 75 100 50 57 121 98 71 81 104
All the bytes here are known safe bytes, so there is very little chance that any system will corrupt this message. I can send this instead of my original message and let the receiver reverse the process to recover the original message.
Using iconv looks like best solution but i my case I have Notice form this function: "Detected an illegal character in input string in" (without igonore). I use 2 functions to manipulate ASCII strings convert it to array of ASCII code and then serialize:
public static function ToAscii($string) {
$strlen = strlen($string);
$charCode = array();
for ($i = 0; $i < $strlen; $i++) {
$charCode[] = ord(substr($string, $i, 1));
}
$result = json_encode($charCode);
return $result;
}
public static function fromAscii($string) {
$charCode = json_decode($string);
$result = '';
foreach ($charCode as $code) {
$result .= chr($code);
};
return $result;
}
Use the %02X
format parameter:
printf("%02X",word[i]);
More info can be found here: http://www.cplusplus.com/reference/cstdio/printf/
byte[] asciiBytes = Encoding.ASCII.GetBytes("Y");
foreach (byte b in asciiBytes)
{
MessageBox.Show("" + b);
}
On Linux man ascii
says:
ASCII is the American Standard Code for Information Interchange. It is a 7-bit code.
As an extension to Ignacio Vazquez-Abrams' answer
>>> u'a?ä'.encode('ascii', 'ignore')
'a'
It is sometimes desirable to remove accents from characters and print the base form. This can be accomplished with
>>> import unicodedata
>>> unicodedata.normalize('NFKD', u'a?ä').encode('ascii', 'ignore')
'aa'
You may also want to translate other characters (such as punctuation) to their nearest equivalents, for instance the RIGHT SINGLE QUOTATION MARK unicode character does not get converted to an ascii APOSTROPHE when encoding.
>>> print u'\u2019'
’
>>> unicodedata.name(u'\u2019')
'RIGHT SINGLE QUOTATION MARK'
>>> u'\u2019'.encode('ascii', 'ignore')
''
# Note we get an empty string back
>>> u'\u2019'.replace(u'\u2019', u'\'').encode('ascii', 'ignore')
"'"
Although there are more efficient ways to accomplish this. See this question for more details Where is Python's "best ASCII for this Unicode" database?
The accepted answer is correct, but there is a more clever/efficient way to do this if you need to convert a whole bunch of ASCII characters to their ASCII codes at once. Instead of doing:
for ch in mystr:
code = ord(ch)
or the slightly faster:
for code in map(ord, mystr):
you convert to Python native types that iterate the codes directly. On Python 3, it's trivial:
for code in mystr.encode('ascii'):
and on Python 2.6/2.7, it's only slightly more involved because it doesn't have a Py3 style bytes
object (bytes
is an alias for str
, which iterates by character), but they do have bytearray
:
# If mystr is definitely str, not unicode
for code in bytearray(mystr):
# If mystr could be either str or unicode
for code in bytearray(mystr, 'ascii'):
Encoding as a type that natively iterates by ordinal means the conversion goes much faster; in local tests on both Py2.7 and Py3.5, iterating a str
to get its ASCII codes using map(ord, mystr)
starts off taking about twice as long for a len
10 str
than using bytearray(mystr)
on Py2 or mystr.encode('ascii')
on Py3, and as the str
gets longer, the multiplier paid for map(ord, mystr)
rises to ~6.5x-7x.
The only downside is that the conversion is all at once, so your first result might take a little longer, and a truly enormous str
would have a proportionately large temporary bytes
/bytearray
, but unless this forces you into page thrashing, this isn't likely to matter.
There is no difference, in browsers that you can find in the wild these days (that is, excluding things like Netscape 1 that you might find in a museum). There is no reason to suspect that any of them would be deprecated ever, especially since they are all valid in XML, in HTML 4.01, and in HTML5 CR.
There is no reason to use any of them, as opposite to using the Ascii quotation mark (") directly, except in the very special case where you have an attribute value enclosed in such marks and you would like to use the mark inside the value (e.g., title="Hello "world""
), and even then, there are almost always better options (like title='Hello "word"'
or title="Hello “word”"
.
If you want to use “smart” quotation marks instead, then it’s a different question, and none of the constructs has anything to do with them. Some people expect notations like "
to produce “smart” quotes, but it is easy to see that they don’t; the notations unambiguously denote the Ascii quote ("), as used in computer languages.
The select may look like the following sample:
select nvalue from table
where length(asciistr(nvalue))!=length(nvalue)
order by nvalue;
This is not optimal performance-wise, but a pretty straight-forward Linq approach:
string strippedString = new string(
yourString.Where(c => c <= sbyte.MaxValue).ToArray()
);
The downside is that all the "surviving" characters are first put into an array of type char[]
which is then thrown away after the string
constructor no longer uses it.
puts "string".split('').map(&:ord).to_s
l = [83, 84, 65, 67, 75]
s = "".join([chr(c) for c in l])
print s
If you are using C# you should use Environment.NewLine
, which accordingly to MSDN it is:
A string containing "\r\n" for non-Unix platforms, or a string containing "\n" for Unix platforms.
ANSI encoding is a slightly generic term used to refer to the standard code page on a system, usually Windows. It is more properly referred to as Windows-1252 on Western/U.S. systems. (It can represent certain other Windows code pages on other systems.) This is essentially an extension of the ASCII character set in that it includes all the ASCII characters with an additional 128 character codes. This difference is due to the fact that "ANSI" encoding is 8-bit rather than 7-bit as ASCII is (ASCII is almost always encoded nowadays as 8-bit bytes with the MSB set to 0). See the article for an explanation of why this encoding is usually referred to as ANSI.
The name "ANSI" is a misnomer, since it doesn't correspond to any actual ANSI standard, but the name has stuck. ANSI is not the same as UTF-8.
small_letters = map(chr, range(ord('a'), ord('z')+1))
big_letters = map(chr, range(ord('A'), ord('Z')+1))
digits = map(chr, range(ord('0'), ord('9')+1))
or
import string
string.letters
string.uppercase
string.digits
This solution uses the ASCII table. ord
gets the ascii value from a character and chr
vice versa.
>>> small_letters = map(chr, range(ord('a'), ord('z')+1))
>>> an = small_letters[0:(ord('n')-ord('a')+1)]
>>> print(" ".join(an))
a b c d e f g h i j k l m n
>>> print(" ".join(small_letters[0::2]))
a c e g i k m o q s u w y
>>> s = small_letters[0:(ord('n')-ord('a')+1):2]
>>> print(" ".join(s))
a c e g i k m
>>> urls = ["hello.com/", "hej.com/", "hallo.com/"]
>>> print([x + y for x, y in zip(urls, an)])
['hello.com/a', 'hej.com/b', 'hallo.com/c']
Just use a for loop to go through each couple of characters in the string, convert them to a character and then whack the character on the end of a string builder:
String hex = "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";
StringBuilder output = new StringBuilder();
for (int i = 0; i < hex.length(); i+=2) {
String str = hex.substring(i, i+2);
output.append((char)Integer.parseInt(str, 16));
}
System.out.println(output);
Or (Java 8+) if you're feeling particularly uncouth, use the infamous "fixed width string split" hack to enable you to do a one-liner with streams instead:
System.out.println(Arrays
.stream(hex.split("(?<=\\G..)")) //https://stackoverflow.com/questions/2297347/splitting-a-string-at-every-n-th-character
.map(s -> Character.toString((char)Integer.parseInt(s, 16)))
.collect(Collectors.joining()));
Either way, this gives a few lines starting with the following:
uTorrent\Completed\nfsuc_ost_by_mustang\Pendulum-9,000 Miles.mp3
Hmmm... :-)
[ -~]
It was seen here. It matches all ASCII characters from the space to the tilde.
So your implementation would be:
xxx[ -~]+xxx
similar to R0byn's experience, i was experimenting with a Powerpoint slide presentation and dumped out the main body of text on the slide, finding that all the places where one would typically find carriage return (ASCII 13/0x0d/^M) or line feed/new line (ASCII 10/0x0a/^J) characters, it uses vertical tab (ASCII 11/0x0b/^K) instead, presumably for the exact reason that dan04 described above for Word: to serve as a "newline" while staying within the same paragraph. good question though as i totally thought this character would be as useless as a teletype terminal today.
You really want to do this
flog.write("\nCompany Name: "+ pCompanyName.encode('utf-8'))
This is the "encode late" strategy described in this unicode presentation (slides 32 through 35).
A List Apart has a nice reference on characters and typography in HTML. According to that article, the correct HTML entity for the apostrophe is ’
. Example use: ’ .
It is important to notice that in C# the char type is stored as Unicode UTF-16.
char c = (char)88;
or
char c = Convert.ToChar(88)
int asciiCode = (int)'A';
The literal must be ASCII equivalent. For example:
string str = "X?????????";
Console.WriteLine((int)str[0]);
Console.WriteLine((int)str[1]);
will print
X
3626
Extended ASCII ranges from 0 to 255.
Using the Symbol
char c = 'X';
Using the Unicode code
char c = '\u0058';
Using the Hexadecimal
char c = '\x0058';
Going down your list:
Utf32String
class as part of my MiscUtil library, should you ever want it. (It's not been very thoroughly tested, mind you.)There's more on my Unicode page and tips for debugging Unicode problems.
The other big resource of code is unicode.org which contains more information than you'll ever be able to work your way through - possibly the most useful bit is the code charts.
Not sure about the (errors="ignore") option but it seems to work for files with strange Unicode characters.
with open(fName, "rb") as fData:
lines = fData.read().splitlines()
lines = [line.decode("utf-8", errors="ignore") for line in lines]
I had the following problem(s) with the existing answers to this question (and variations of this question on other stackoverflow threads):
Or, slightly more accurately:
My final solution, which loads the script before returning, AND has all scripts properly accessible in the debugger (for Chrome at least) is as follows:
WARNING: The following code should PROBABLY be used only in 'development' mode. (For 'release' mode I recommend prepackaging and minification WITHOUT dynamic script loading, or at least without eval).
//Code User TODO: you must create and set your own 'noEval' variable
require = function require(inFileName)
{
var aRequest
,aScript
,aScriptSource
;
//setup the full relative filename
inFileName =
window.location.protocol + '//'
+ window.location.host + '/'
+ inFileName;
//synchronously get the code
aRequest = new XMLHttpRequest();
aRequest.open('GET', inFileName, false);
aRequest.send();
//set the returned script text while adding special comment to auto include in debugger source listing:
aScriptSource = aRequest.responseText + '\n////# sourceURL=' + inFileName + '\n';
if(noEval)//<== **TODO: Provide + set condition variable yourself!!!!**
{
//create a dom element to hold the code
aScript = document.createElement('script');
aScript.type = 'text/javascript';
//set the script tag text, including the debugger id at the end!!
aScript.text = aScriptSource;
//append the code to the dom
document.getElementsByTagName('body')[0].appendChild(aScript);
}
else
{
eval(aScriptSource);
}
};
Another nice little method is to include the current directory in your load path with
$:.unshift('.')
You could push it onto the $: ($LOAD_PATH) array but unshift will force it to load your current working directory before the rest of the load path.
Once you've added your current directory in your load path you don't need to keep specifying
require './tokenizer'
and can just go back to using
require 'tokenizer'
There are 8 bits in a byte (normally speaking in Windows).
However, if you are dealing with characters, it will depend on the charset/encoding. Unicode character can be 2 or 4 bytes, so that would be 16 or 32 bits, whereas Windows-1252 sometimes incorrectly called ANSI is only 1 bytes so 8 bits.
In Asian version of Windows and some others, the entire system runs in double-byte, so a character is 16 bits.
EDITED
Per Matteo's comment, all contemporary versions of Windows use 16-bits internally per character.
This way to check the condition while pressing 'YES' or 'NO' buttons in MessageBox window.
DialogResult d = MessageBox.Show("Are you sure ?", "Remove Panel", MessageBoxButtons.YesNo);
if (d == DialogResult.Yes)
{
//Contents
}
else if (d == DialogResult.No)
{
//Contents
}
I also stuck on this issue. But I solved simply by defining the foreign key as unsigned integer
.
Find the below example-
CREATE TABLE parent (
id int(10) UNSIGNED NOT NULL,
PRIMARY KEY (id)
) ENGINE=INNODB;
CREATE TABLE child (
id int(10) UNSIGNED NOT NULL,
parent_id int(10) UNSIGNED DEFAULT NULL,
FOREIGN KEY (parent_id) REFERENCES parent(id) ON DELETE CASCADE
) ENGINE=INNODB;
. "$PSScriptRoot\MyFunctions.ps1"
MyA1Func
Availalbe starting in v3, before that see How can I get the file system location of a PowerShell script?. It is VERY common.
P.S. I don't subscribe to the 'everything is a module' rule. My scripts are used by other developers out of GIT, so I don't like to put stuff in specific a place or modify system environment variables before my script will run. It's just a script (or two, or three).
You can't do this in any cross-browser way. IE does have methods to enable "trusted" applications to use ActiveX objects to read/write files, but that is it unfortunately.
If you are looking to save user information, you will most likely need to use cookies.
A simple InputStream will do
byte[] fileToBytes(File file){
byte[] bytes = new byte[0];
try(FileInputStream inputStream = new FileInputStream(file)) {
bytes = new byte[inputStream.available()];
//noinspection ResultOfMethodCallIgnored
inputStream.read(bytes);
} catch (IOException e) {
e.printStackTrace();
}
return bytes;
}
Make sure you are importing the right class
import android.util.Log;
You may also want to check to see whether you're linking against the dynamic or static C runtime library. If your DLL files are linking against the static C runtime library, then the DLL files have separate heaps.
Hence, if you were to create an object in one DLL and try to free it in another DLL, you would get the same message you're seeing above. This problem is referenced in another Stack Overflow question, Freeing memory allocated in a different DLL.
I found this also works...
var select = document.getElementById("selectNumber");
var options = ["1", "2", "3", "4", "5"];
// Optional: Clear all existing options first:
select.innerHTML = "";
// Populate list with options:
for(var i = 0; i < options.length; i++) {
var opt = options[i];
select.innerHTML += "<option value=\"" + opt + "\">" + opt + "</option>";
}
I was able to install libc6 2.17
in Debian Wheezy
by editing the recommendations in perror's answer:
IMPORTANT
You need to exit out of your display manager by pressing CTRL-ALT-F1.
Then you can stop x (slim
) with sudo /etc/init.d/slim stop
(replace slim with mdm
or lightdm
or whatever)
Add the following line to the file /etc/apt/sources.list
:
deb http://ftp.debian.org/debian experimental main
Should be changed to:
deb http://ftp.debian.org/debian sid main
Then follow the rest of perror's post:
Update your package database:
apt-get update
Install the eglibc
package:
apt-get -t sid install libc6-amd64 libc6-dev libc6-dbg
IMPORTANT
After done updating libc6
, restart computer, and you should comment out or remove the sid source you just added (deb http://ftp.debian.org/debian sid main
), or else you risk upgrading your whole distro to sid.
Hope this helps. It took me a while to figure out.
public class RemoveCharFromString {
public static void main(String[] args) {
String output = remove("Hello", 'l');
System.out.println(output);
}
private static String remove(String input, char c) {
if (input == null || input.length() <= 1)
return input;
char[] inputArray = input.toCharArray();
char[] outputArray = new char[inputArray.length];
int outputArrayIndex = 0;
for (int i = 0; i < inputArray.length; i++) {
char p = inputArray[i];
if (p != c) {
outputArray[outputArrayIndex] = p;
outputArrayIndex++;
}
}
return new String(outputArray, 0, outputArrayIndex);
}
}
EF 4.1 to EF 6
There is a strongly typed .Include
which allows the required depth of eager loading to be specified by providing Select expressions to the appropriate depth:
using System.Data.Entity; // NB!
var company = context.Companies
.Include(co => co.Employees.Select(emp => emp.Employee_Car))
.Include(co => co.Employees.Select(emp => emp.Employee_Country))
.FirstOrDefault(co => co.companyID == companyID);
The Sql generated is by no means intuitive, but seems performant enough. I've put a small example on GitHub here
EF Core
EF Core has a new extension method, .ThenInclude()
, although the syntax is slightly different:
var company = context.Companies
.Include(co => co.Employees)
.ThenInclude(emp => emp.Employee_Car)
.Include(co => co.Employees)
.ThenInclude(emp => emp.Employee_Country)
With some notes
Employees.Employee_Car
and Employees.Employee_Country
), if you need to include 2 or more child properties of an intermediate child collection, you'll need to repeat the .Include
navigation for the collection for each child of the collection..ThenInclude
to preserve your sanity.You should use the csv
module to read the tab-separated value file. Do not read it into memory in one go. Each row you read has all the information you need to write rows to the output CSV file, after all. Keep the output file open throughout.
import csv
with open('sample.txt', newline='') as tsvin, open('new.csv', 'w', newline='') as csvout:
tsvin = csv.reader(tsvin, delimiter='\t')
csvout = csv.writer(csvout)
for row in tsvin:
count = int(row[4])
if count > 0:
csvout.writerows([row[2:4] for _ in range(count)])
or, using the itertools
module to do the repeating with itertools.repeat()
:
from itertools import repeat
import csv
with open('sample.txt', newline='') as tsvin, open('new.csv', 'w', newline='') as csvout:
tsvin = csv.reader(tsvin, delimiter='\t')
csvout = csv.writer(csvout)
for row in tsvin:
count = int(row[4])
if count > 0:
csvout.writerows(repeat(row[2:4], count))
Issue: 'id1' is missing in props validation, eslintreact/prop-types
<div id={props.id1} >
...
</div>
Below solution worked, in a function component:
let { id1 } = props;
<div id={id1} >
...
</div>
Hope that helps.
It sounds lofty,when it comes to supporting multiple screen Sizes.The following gves better results .
res/layout/layout-w120dp
res/layout/layout-w160dp
res/layout/layout-w240dp
res/layout/layout-w160dp
res/layout/layout-w320dp
res/layout/layout-w480dp
res/layout/layout-w600dp
res/layout/layout-w720dp
Chek the Device Width and Height using Display Metrics
Place/figure out which layout suits for the resulted width of the Device .
let smallestScreenWidthDp="assume some value(Which will be derived from Display metrics)"
All should be checked before setContentView().Otherwise you put yourself in trouble
Configuration config = getResources().getConfiguration();
if (config.smallestScreenWidthDp >= 600) {
setContentView(R.layout.layout-w600dp);
} else {
setContentView(R.layout.main_activity);
}
In the top,i have created so many layouts to fit multiple screens,it is all depends on you ,you may or not.You can see the play store reviews from Which API ,The Downloads are High..form that you have to proceed.
I hope it helps you lot.Few were using some third party libraries,It may be reduce your work ,but that is not best practice. Get Used to Android Best Practices.
TLDR: simple defined variables (without var
, let
, const
) could be deleted with delete
. If you use var
, let
, const
- they could not be deleted neither with delete
nor with Reflect.deleteProperty
.
Chrome 55:
simpleVar = "1";
"1"
delete simpleVar;
true
simpleVar;
VM439:1 Uncaught ReferenceError: simpleVar is not defined
at <anonymous>:1:1
(anonymous) @ VM439:1
var varVar = "1";
undefined
delete varVar;
false
varVar;
"1"
let letVar = "1";
undefined
delete letVar;
true
letVar;
"1"
const constVar="1";
undefined
delete constVar;
true
constVar;
"1"
Reflect.deleteProperty (window, "constVar");
true
constVar;
"1"
Reflect.deleteProperty (window, "varVar");
false
varVar;
"1"
Reflect.deleteProperty (window, "letVar");
true
letVar;
"1"
FF Nightly 53.0a1 shows same behaviour.
os.path.split(os.path.abspath(mydir))[0]
You need to use the AND function for the multiple conditions:
=IF(AND(A2>=75, A2<=79),0.255,IF(AND(A2>=80, X2<=84),0.327,IF(A2>=85,0.559,0)))
[EDITED] It's seems you earlier have redefined "list", using it as a variable name, like this:
list = set([1,2,3,4]) # oops
#...
first_list = [1,2,3,4]
my_set=set(first_list)
my_list = list(my_set)
And you'l get
Traceback (most recent call last):
File "<console>", line 1, in <module>
TypeError: 'set' object is not callable
The above solutions didn't work for me, but the following did (and it seems a bit cleaner).
First, in the string resource, define your tag opening chevrons using the HTML entity encoding, i.e.:
<a href="http://www.google.com">Google</a>
and NOT:
<a href="http://www.google.com">Google</a>
In general, encode all the chevrons in the string like that. BTW, the link must start with http://
Then (as suggested here) set this option on your TextView:
android:linksClickable="true"
Finally, in code, do:
((TextView) findViewById(R.id.your_text_view)).setMovementMethod(LinkMovementMethod.getInstance());
((TextView) findViewById(R.id.your_text_view)).setText(Html.fromHtml(getResources().getString(R.string.string_with_links)));
That's it, no regexes or other manual hacks required.
Switch to AppCompatActivity and add a 25 dp paddingTop on the toolbar and turn on
<item name="android:windowTranslucentStatus">true</item>
Then, the will toolbar go up top the top
Can't you just send to INADDR_BROADCAST? Admittedly, that'll send on all interfaces - but that's rarely a problem.
Otherwise, ioctl and SIOCGIFBRDADDR should get you the address on *nix, and WSAioctl and SIO_GET_BROADCAST_ADDRESS on win32.
I thought up a rather elegant solution (IMHO), so I can't resist posting it:
from bisect import bisect_left
class Interpolate(object):
def __init__(self, x_list, y_list):
if any(y - x <= 0 for x, y in zip(x_list, x_list[1:])):
raise ValueError("x_list must be in strictly ascending order!")
x_list = self.x_list = map(float, x_list)
y_list = self.y_list = map(float, y_list)
intervals = zip(x_list, x_list[1:], y_list, y_list[1:])
self.slopes = [(y2 - y1)/(x2 - x1) for x1, x2, y1, y2 in intervals]
def __getitem__(self, x):
i = bisect_left(self.x_list, x) - 1
return self.y_list[i] + self.slopes[i] * (x - self.x_list[i])
I map to float
so that integer division (python <= 2.7) won't kick in and ruin things if x1
, x2
, y1
and y2
are all integers for some iterval.
In __getitem__
I'm taking advantage of the fact that self.x_list is sorted in ascending order by using bisect_left
to (very) quickly find the index of the largest element smaller than x
in self.x_list
.
Use the class like this:
i = Interpolate([1, 2.5, 3.4, 5.8, 6], [2, 4, 5.8, 4.3, 4])
# Get the interpolated value at x = 4:
y = i[4]
I've not dealt with the border conditions at all here, for simplicity. As it is, i[x]
for x < 1
will work as if the line from (2.5, 4) to (1, 2) had been extended to minus infinity, while i[x]
for x == 1
or x > 6
will raise an IndexError
. Better would be to raise an IndexError in all cases, but this is left as an exercise for the reader. :)
The language standard simply doesn't allow for it. Labels can only be followed by statements, and declarations do not count as statements in C. The easiest way to get around this is by inserting an empty statement after your label, which relieves you from keeping track of the scope the way you would need to inside a block.
#include <stdio.h>
int main ()
{
printf("Hello ");
goto Cleanup;
Cleanup: ; //This is an empty statement.
char *str = "World\n";
printf("%s\n", str);
}
I see you have a problem. Try building your app as Release and then check out your source codes build folder. It may be called Release-iphonesimulator. Inside here will be the app. Then go to (home folder)/Library/Application Support/iPhone Simulator (if you can't find it, try pressing Command - J and choosing arrange by name). Go to an OS that has apps in it in the iPhone sim, like 4.1. In that folder there should be an Applications folder. Open that, and there should be folders with random lettering. Pick any one, and replace it with the app you have. Make sure to delete anything in the little folders!
If it doesn't work, then I'm dumbfounded.
To expand on the accepted answer, I just wanted to provide another reason why real
? user
+ sys
.
Keep in mind that real
represents actual elapsed time, while user
and sys
values represent CPU execution time. As a result, on a multicore system, the user
and/or sys
time (as well as their sum) can actually exceed the real time. For example, on a Java app I'm running for class I get this set of values:
real 1m47.363s
user 2m41.318s
sys 0m4.013s
Simple:
public static String decToHex(int dec)
{
return Integer.toHexString(dec);
}
As mentioned here: Java Convert integer to hex integer
Try this:
hex_str = "0xAD4"
hex_int = int(hex_str, 16)
new_int = hex_int + 0x200
print hex(new_int)
If you don't like the 0x
in the beginning, replace the last line with
print hex(new_int)[2:]
To create a "drop down menu" you can use OptionMenu
in tkinter
Example of a basic OptionMenu
:
from Tkinter import *
master = Tk()
variable = StringVar(master)
variable.set("one") # default value
w = OptionMenu(master, variable, "one", "two", "three")
w.pack()
mainloop()
More information (including the script above) can be found here.
Creating an OptionMenu
of the months from a list would be as simple as:
from tkinter import *
OPTIONS = [
"Jan",
"Feb",
"Mar"
] #etc
master = Tk()
variable = StringVar(master)
variable.set(OPTIONS[0]) # default value
w = OptionMenu(master, variable, *OPTIONS)
w.pack()
mainloop()
In order to retrieve the value the user has selected you can simply use a .get()
on the variable that we assigned to the widget, in the below case this is variable
:
from tkinter import *
OPTIONS = [
"Jan",
"Feb",
"Mar"
] #etc
master = Tk()
variable = StringVar(master)
variable.set(OPTIONS[0]) # default value
w = OptionMenu(master, variable, *OPTIONS)
w.pack()
def ok():
print ("value is:" + variable.get())
button = Button(master, text="OK", command=ok)
button.pack()
mainloop()
I would highly recommend reading through this site for further basic tkinter information as the above examples are modified from that site.
I think all you need to do for your function is just add PtrSafe: i.e. the first line of your first function should look like this:
Private Declare PtrSafe Function swe_azalt Lib "swedll32.dll" ......
You can use an argument of type Type - iow, pass typeof(int). You can also use generics for a (probably more efficient) approach.
You can give the background image in css :
#canvas { background:url(example.jpg) }
it will show you canvas back ground image
Someone edited this question to remove the code I used, so I was forced to add it as an answer. Thanks to all who participated in answering this question! I think most of the other answers are better than this code, I'm just leaving this here for reference purposes.
With thanks to Paul H, and unutbu (who answered this question), I have some pretty nice-looking output:
import matplotlib.pyplot as plt
import numpy as np
column_labels = list('ABCD')
row_labels = list('WXYZ')
data = np.random.rand(4,4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data, cmap=plt.cm.Blues)
# put the major ticks at the middle of each cell
ax.set_xticks(np.arange(data.shape[0])+0.5, minor=False)
ax.set_yticks(np.arange(data.shape[1])+0.5, minor=False)
# want a more natural, table-like display
ax.invert_yaxis()
ax.xaxis.tick_top()
ax.set_xticklabels(row_labels, minor=False)
ax.set_yticklabels(column_labels, minor=False)
plt.show()
And here's the output:
None of the above answers fixed this issue for me. I did it as following (Laravel with Ubuntu server):
<?php
$footerFile = '/var/www/website/main/resources/views/emails/elements/emailfooter.blade.php';
include($footerFile);
?>
Update pandas 0.17.0
@7stud's answer for the newest pandas version would require to just call
s.plot(
kind='bar',
color=my_colors,
)
instead of
pd.Series.plot(
s,
kind='bar',
color=my_colors,
)
The plotting functions have become members of the Series, DataFrame objects and in fact calling pd.Series.plot
with a color
argument gives an error
In my case, Filezilla sends the AWS ppk file to every other FTP server I try to securely connect to.
That's crazy. There's a workaround as written below but it's ugly.
It does not behave well as @Lucio M pointed out.
From this discussion: https://forum.filezilla-project.org/viewtopic.php?t=30605
n0lqu:
Agreed. However, given I can't control the operation of the server, is there any way to specify within FileZilla that a site should authenticate with a password rather than key, or vice-versa? Or tell it to try password first, then key only if password fails? It appears to me it's trying key first, and then not getting a chance to try password.
botg(Filezilla admin) replied:
There's no such option.
n0lqu:
Could such an option be added, or are there any good workarounds anyone can recommend? Right now, the only workaround I know is to delete the key from general preferences, add it back only when connecting to the specific site that requires it, then deleting it again when done so it doesn't mess up other sites.
botg:
Right now you could have two FileZilla instances with separate config dirs (e. g. one installed and one portable).
timboskratch:
I just had this same issue today and managed to resolve it by changing the "logon type" of the connection using a password in the site manager. Instead of "Normal" I could select either "Interactive" or "Ask for Password" (not really sure what the difference is) and then when I tried to connect to the site again it gave me a prompt to enter my password and then connected successfully. It's not ideal as it means you have to remember and re-type you password every time you connect, but better than having to install 2 instances of FileZilla. I totally agree that it would be very useful in the Site Manager to have full options of how you would like FileZilla to connect to each site which is set up (whether to use a password, key, etc.) Hope this is helpful! Tim
Also see: https://forum.filezilla-project.org/viewtopic.php?t=34676
So, it seems:
For multiple FTP sites with keys / passwords, use multiple Filezilla installs, OR, use the same ppk key for all servers.
I wish there was a way to tell FileZilla which ppk is for which site in Site Manger
It won't be fast, and there will be a lot for you to type (unless you generate the SQL from user_tab_columns), but here is what I use when I need to compare two tables row-by-row and column-by-column.
The query will return all rows that
(common identical rows will be excluded).
"PK" is the column(s) that make up your primary key. "a" will contain A if the present row exists in table1. "b" will contain B if the present row exists in table2.
select pk
,decode(a.rowid, null, null, 'A') as a
,decode(b.rowid, null, null, 'B') as b
,a.col1, b.col1
,a.col2, b.col2
,a.col3, b.col3
,...
from table1 a
full outer
join table2 b using(pk)
where decode(a.col1, b.col1, 1, 0) = 0
or decode(a.col2, b.col2, 1, 0) = 0
or decode(a.col3, b.col3, 1, 0) = 0
or ...;
Edit Added example code to show the difference described in comment. Whenever one of the values contains NULL, the result will be different.
with a as(
select 0 as col1 from dual union all
select 1 as col1 from dual union all
select null as col1 from dual
)
,b as(
select 1 as col1 from dual union all
select 2 as col1 from dual union all
select null as col1 from dual
)
select a.col1
,b.col1
,decode(a.col1, b.col1, 'Same', 'Different') as approach_1
,case when a.col1 <> b.col1 then 'Different' else 'Same' end as approach_2
from a,b
order
by a.col1
,b.col1;
col1 col1_1 approach_1 approach_2
==== ====== ========== ==========
0 1 Different Different
0 2 Different Different
0 null Different Same <---
1 1 Same Same
1 2 Different Different
1 null Different Same <---
null 1 Different Same <---
null 2 Different Same <---
null null Same Same
Microsoft converts your Int16
variables into Int32
when doing the add function.
Change the following:
Int16 answer = firstNo + secondNo;
into...
Int16 answer = (Int16)(firstNo + secondNo);
I noticed that Visual Studio's built-in error detector kind of gets goofy if you try to do this:
var intvar = @(ViewBag.someNumericValue);
Because @(ViewBag.someNumericValue) has the potential to evaluate to nothing, which would lead to the following erroneous JavaScript being generated:
var intvar = ;
If you're certain that someNemericValue will be set to a valid numeric data type, you can avoid having Visual Studio warnings by doing the following:
var intvar = Number(@(ViewBag.someNumericValue));
This might generate the following sample:
var intvar = Number(25.4);
And it works for negative numbers. In the event that the item isn't in your viewbag, Number() evaluates to 0.
No more Visual Studio warnings! But make sure the value is set and is numeric, otherwise you're opening doors to possible JavaScript injection attacks or run time errors.
You're being mislead by output -- the second approach you're taking actually does what you want, you just aren't believing it. :)
>>> foo = 'baz "\\"'
>>> foo
'baz "\\"'
>>> print(foo)
baz "\"
Incidentally, there's another string form which might be a bit clearer:
>>> print(r'baz "\"')
baz "\"
<input type="text" id="inputName" placeholder="Enter name" required oninvalid="this.setCustomValidity('Your Message')" oninput="this.setCustomValidity('') />
this can help you even more better, Fast, Convenient & Easiest.
In Java 8, you could do:
try (Stream<String> lines = Files.lines (file, StandardCharsets.UTF_8))
{
for (String line : (Iterable<String>) lines::iterator)
{
;
}
}
Some notes: The stream returned by Files.lines
(unlike most streams) needs to be closed. For the reasons mentioned here I avoid using forEach()
. The strange code (Iterable<String>) lines::iterator
casts a Stream to an Iterable.
I got this problem after moving a project and deleting it's packages folder. Nuget was showning that MSTest.TestAdapter and MSTest.TestFramework v 1.3.2 was installed. The fix seemed to be to open VS as administrator and build After that I was able to re-open and build without having admin priviledge.
Ubuntu 18.04
Install and ensure mysqld us running..
Go into database and setup root user:
sudo mysql -u root
SELECT User,Host FROM mysql.user;
DROP USER 'root'@'localhost';
CREATE USER 'root'@'%' IDENTIFIED BY 'obamathelongleggedmacdaddy';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;
exit;
Edit mysqld permissions and restart:
sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf
# edit the line to be this:
bind-address=0.0.0.0
sudo systemctl stop mysql
sudo systemctl start mysql
From another machine, test.. Obvs port (3306) on mysqld machine must allow connection from test machine.
mysql -u root -p -h 123.456.789.666
All the additional "security" of MySql doesn't help security at all, it just complicates and obfuscates, it is now actually easier to screw it up than in the old days, where you just used a really long password.
For anyone else coming across this thread I had this issue and was pulling my hair out. I had the service declaration OUTSIDE of the '< application>' end tag DUH!
RIGHT:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
...>
...
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity ...>
...
</activity>
<service android:name=".Service"/>
<receiver android:name=".Receiver">
<intent-filter>
...
</intent-filter>
</receiver>
</application>
<uses-permission android:name="..." />
WRONG but still compiles without errors:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
...>
...
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity ...>
...
</activity>
</application>
<service android:name=".Service"/>
<receiver android:name=".Receiver">
<intent-filter>
...
</intent-filter>
</receiver>
<uses-permission android:name="..." />
Efficiency isn't going to matter for something like this in 99.999999% of situations. Do whatever is easier to read and or maintain.
In my apps I usually rely on classes to provide hiding and showing, for example .addClass('isHidden')/.removeClass('isHidden')
which would allow me to animate things with CSS3 if I wanted to. It provides more flexibility.
To do without reinstalling spyder in all environments follow official reference here.
In summary (tested with conda):
From the system prompt:
Create an new environment. Note that depending on how you create it (conda, virtualenv) the environment folder will be located at different place on your system)
Activate the environment (e.g., conda activate [yourEnvName]
)
Install spyder-kernels inside the environment (e.g., conda install spyder-kernels
)
Find and copy the path for the python executable inside the environment. Finding this path can be done using from the prompt this command python -c "import sys; print(sys.executable)"
Deactivate the environment (i.e., return to base conda deactivate
)
run spyder (spyder3
)
Finally in spyder Tool menu go to Preferences > Python Interpreter > Use the following interpreter and paste the environment python executable path
Restart the ipython console
PS: in spyder you should see at the bottom something like this
Voila
Since Oracle inserted some md5hash in their download links, one cannot automatically assemble a download link for command line.
So I tinkered some nasty bash command line to get the latest jdk download link, download it and directly install via rpm. For all who are interested:
wget -q http://www.oracle.com/technetwork/java/javase/downloads/index.html -O ./index.html && grep -Eoi ']+>' index.html | grep -Eoi '/technetwork/java/javase/downloads/jdk8-downloads-[0-9]+.html' | (head -n 1) | awk '{print "http://www.oracle.com"$1}' | xargs wget --no-cookies --header "Cookie: gpw_e24=xxx; oraclelicense=accept-securebackup-cookie;" -O index.html -q && grep -Eoi '"filepath":"[^"]+jdk-8u[0-9]+-linux-x64.rpm"' index.html | grep -Eoi 'http:[^"]+' | xargs wget --no-cookies --header "Cookie: gpw_e24=xxx; oraclelicense=accept-securebackup-cookie;" -q -O ./jdk8.rpm && sudo rpm -i ./jdk8.rpm
The bold part should be replaced by the package of your liking.
Try this:
print ("Enter the Five Numbers with Comma")
k=[x for x in input("Enter Number:").split(',')]
for l in k:
print (l)
I've created a JUnit Test class(as a additional knowledge/info) for the same issue. Hope you'll be finding this helpful.
public class StringHelper {
//Separate words from String which has gigits
public String drawDigitsFromString(String strValue){
String str = strValue.trim();
String digits="";
for (int i = 0; i < str.length(); i++) {
char chrs = str.charAt(i);
if (Character.isDigit(chrs))
digits = digits+chrs;
}
return digits;
}
}
And JUnit Test case is:
public class StringHelperTest {
StringHelper helper;
@Before
public void before(){
helper = new StringHelper();
}
@Test
public void testDrawDigitsFromString(){
assertEquals("187111", helper.drawDigitsFromString("TCS187TCS111"));
}
}
In Oracle, you can use NULLS FIRST
or NULLS LAST
: specifies that NULL values should be returned before / after non-NULL values:
ORDER BY { column-Name | [ ASC | DESC ] | [ NULLS FIRST | NULLS LAST ] }
For example:
ORDER BY date DESC NULLS LAST
Ref: http://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqlj13658.html
Use the "\uxxxx" escape format.
According to Wikipedia, the copyright symbol is unicode U+00A9 so your line should read:
String copyright = "\u00a9 2003-2008 My Company. All rights reserved.";
Jquery Touch Punch is great but what it also does is disable all the controls on the draggable div so to prevent this you have to alter the lines... (at the time of writing - line 75)
change
if (touchHandled || !self._mouseCapture(event.originalEvent.changedTouches[0])){
to read
if (touchHandled || !self._mouseCapture(event.originalEvent.changedTouches[0]) || event.originalEvent.target.localName === 'textarea'
|| event.originalEvent.target.localName === 'input' || event.originalEvent.target.localName === 'button' || event.originalEvent.target.localName === 'li'
|| event.originalEvent.target.localName === 'a'
|| event.originalEvent.target.localName === 'select' || event.originalEvent.target.localName === 'img') {
add as many ors as you want for each of the elements you want to 'unlock'
Hope that helps someone
If you're looking for a specific type of control you could use a recursive loop like this one - http://weblogs.asp.net/eporter/archive/2007/02/24/asp-net-findcontrol-recursive-with-generics.aspx
Here's an example I made that returns all controls of the given type
/// <summary>
/// Finds all controls of type T stores them in FoundControls
/// </summary>
/// <typeparam name="T"></typeparam>
private class ControlFinder<T> where T : Control
{
private readonly List<T> _foundControls = new List<T>();
public IEnumerable<T> FoundControls
{
get { return _foundControls; }
}
public void FindChildControlsRecursive(Control control)
{
foreach (Control childControl in control.Controls)
{
if (childControl.GetType() == typeof(T))
{
_foundControls.Add((T)childControl);
}
else
{
FindChildControlsRecursive(childControl);
}
}
}
}
sort()
. This will give a new array with numeric keys starting from 0
.asort()
.See also the comparison table of sorting functions in PHP.
I needed to correct the privileges.REVOKE ALL PRIVILEGES ON
logs.* FROM 'root'@'root'; GRANT ALL PRIVILEGES ON
logs.* TO 'root'@'root'WITH GRANT OPTION;
JSON parsing using NSJSONSerialization
NSString* path = [[NSBundle mainBundle] pathForResource:@"data" ofType:@"json"];
//Here you can take JSON string from your URL ,I am using json file
NSString* jsonString = [[NSString alloc] initWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
NSData* jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *jsonError;
NSArray *jsonDataArray = [NSJSONSerialization JSONObjectWithData:[jsonString dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:&jsonError];
NSLog(@"jsonDataArray: %@",jsonDataArray);
NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:jsonData options:kNilOptions error:&jsonError];
if(jsonObject !=nil){
// NSString *errorCode=[NSMutableString stringWithFormat:@"%@",[jsonObject objectForKey:@"response"]];
if(![[jsonObject objectForKey:@"#data"] isEqual:@""]){
NSMutableArray *array=[jsonObject objectForKey:@"#data"];
// NSLog(@"array: %@",array);
NSLog(@"array: %d",array.count);
int k = 0;
for(int z = 0; z<array.count;z++){
NSString *strfd = [NSString stringWithFormat:@"%d",k];
NSDictionary *dicr = jsonObject[@"#data"][strfd];
k=k+1;
// NSLog(@"dicr: %@",dicr);
NSLog(@"Firstname - Lastname : %@ - %@",
[NSMutableString stringWithFormat:@"%@",[dicr objectForKey:@"user_first_name"]],
[NSMutableString stringWithFormat:@"%@",[dicr objectForKey:@"user_last_name"]]);
}
}
}
You can see the Console output as below :
Firstname - Lastname : Chandra Bhusan - Pandey
Firstname - Lastname : Kalaiyarasan - Balu
Firstname - Lastname : (null) - (null)
Firstname - Lastname : Girija - S
Firstname - Lastname : Girija - S
Firstname - Lastname : (null) - (null)
The main differences between InnoDB and MyISAM ("with respect to designing a table or database" you asked about) are support for "referential integrity" and "transactions".
If you need the database to enforce foreign key constraints, or you need the database to support transactions (i.e. changes made by two or more DML operations handled as single unit of work, with all of the changes either applied, or all the changes reverted) then you would choose the InnoDB engine, since these features are absent from the MyISAM engine.
Those are the two biggest differences. Another big difference is concurrency. With MyISAM, a DML statement will obtain an exclusive lock on the table, and while that lock is held, no other session can perform a SELECT or a DML operation on the table.
Those two specific engines you asked about (InnoDB and MyISAM) have different design goals. MySQL also has other storage engines, with their own design goals.
So, in choosing between InnoDB and MyISAM, the first step is in determining if you need the features provided by InnoDB. If not, then MyISAM is up for consideration.
A more detailed discussion of differences is rather impractical (in this forum) absent a more detailed discussion of the problem space... how the application will use the database, how many tables, size of the tables, the transaction load, volumes of select, insert, updates, concurrency requirements, replication features, etc.
The logical design of the database should be centered around data analysis and user requirements; the choice to use a relational database would come later, and even later would the choice of MySQL as a relational database management system, and then the selection of a storage engine for each table.
Using ReactJs, when I add style file to index.html using relative link such as
<link rel="stylesheet" href="./css/style.css">
and then I navigate to a route say; localhost:3000/artist
and refresh, I get the error.
The error disappeared after I replaced the relative link with an absolute link say;
<link rel="stylesheet" href="http://localhost/project/public/css/style.css"
.
You should indeed start with the Mandelbrot set, and understand what it really is.
The idea behind it is relatively simple. You start with a function of complex variable
f(z) = z2 + C
where z is a complex variable and C is a complex constant. Now you iterate it starting from z = 0, i.e. you compute z1 = f(0), z2 = f(z1), z3 = f(z2) and so on. The set of those constants C for which the sequence z1, z2, z3, ... is bounded, i.e. it does not go to infinity, is the Mandelbrot set (the black set in the figure on the Wikipedia page).
In practice, to draw the Mandelbrot set you should:
The astounding fact about fractals is how we can obtain a tremendously complex set (in particular, the frontier of the Mandelbrot set) from easy and apparently innocuous requirements.
Enjoy!
I believe you need to put the libeay32.dll and ssleay32.dll files in the systems folder
The urls are different.
http://localhost/AccountSvc/DataInquiry.asmx
vs.
/acctinqsvc/portfolioinquiry.asmx
Resolve this issue first, as if the web server cannot resolve the URL you are attempting to POST to, you won't even begin to process the actions described by your request.
You should only need to create the WebRequest to the ASMX root URL, ie: http://localhost/AccountSvc/DataInquiry.asmx
, and specify the desired method/operation in the SOAPAction header.
The SOAPAction header values are different.
http://localhost/AccountSvc/DataInquiry.asmx/ + methodName
vs.
http://tempuri.org/GetMyName
You should be able to determine the correct SOAPAction by going to the correct ASMX URL and appending ?wsdl
There should be a <soap:operation>
tag underneath the <wsdl:operation>
tag that matches the operation you are attempting to execute, which appears to be GetMyName
.
There is no XML declaration in the request body that includes your SOAP XML.
You specify text/xml
in the ContentType of your HttpRequest and no charset. Perhaps these default to us-ascii
, but there's no telling if you aren't specifying them!
The SoapUI created XML includes an XML declaration that specifies an encoding of utf-8, which also matches the Content-Type provided to the HTTP request which is: text/xml; charset=utf-8
Hope that helps!
Some observations on your solution:
A "word" character is any letter or digit or the underscore character, that is, any character which can be part of a Perl "word". The definition of letters and digits is controlled by PCRE's character tables, and may vary if locale-specific matching is taking place. For example, in the "fr" (French) locale, some character codes greater than 128 are used for accented letters, and these are matched by \w.
You probably shouldn't include accented etc. characters in your post slug since, technically, they should be percent encoded (per URL encoding rules) so you'll have ugly looking URLs.
So, if I were you, after lowercasing, I'd convert any 'special' characters to their equivalent (e.g. é -> e) and replace non [a-z] characters with '-', limiting to runs of a single '-' as you've done. There's an implementation of converting special characters here: https://web.archive.org/web/20130208144021/http://neo22s.com/slug
OWASP have a PHP implementation of their Enterprise Security API which among other things includes methods for safe encoding and decoding input and output in your application.
The Encoder interface provides:
canonicalize (string $input, [bool $strict = true])
decodeFromBase64 (string $input)
decodeFromURL (string $input)
encodeForBase64 (string $input, [bool $wrap = false])
encodeForCSS (string $input)
encodeForHTML (string $input)
encodeForHTMLAttribute (string $input)
encodeForJavaScript (string $input)
encodeForOS (Codec $codec, string $input)
encodeForSQL (Codec $codec, string $input)
encodeForURL (string $input)
encodeForVBScript (string $input)
encodeForXML (string $input)
encodeForXMLAttribute (string $input)
encodeForXPath (string $input)
https://github.com/OWASP/PHP-ESAPI https://www.owasp.org/index.php/Category:OWASP_Enterprise_Security_API
Image shown below. I'm only typing this because of a 30 character minimum imposed by Stackoverflow.
If you're trying to style dynamically added HTML elements inside an Angular component, this might be helpful:
// inside component class...
constructor(private hostRef: ElementRef) { }
getContentAttr(): string {
const attrs = this.hostRef.nativeElement.attributes
for (let i = 0, l = attrs.length; i < l; i++) {
if (attrs[i].name.startsWith('_nghost-c')) {
return `_ngcontent-c${attrs[i].name.substring(9)}`
}
}
}
ngAfterViewInit() {
// dynamically add HTML element
dynamicallyAddedHtmlElement.setAttribute(this.getContentAttr(), '')
}
My guess is that the convention for this attribute is not guaranteed to be stable between versions of Angular, so that one might run into problems with this solution when upgrading to a new version of Angular (although, updating this solution would likely be trivial in that case).
What helped for me, was to put the following line in the ready function:
$(document).ready(function()
{
..
...
// codes works on all bootstrap modal windows in application
$('.modal').on('hidden.bs.modal', function(e)
{
$(this).removeData();
}) ;
...
..
});
When a modal window is closed and opened again, the previous entered and selected values, will be reset to the initial values.
I hope this will help you as well!
If your problem is like the following while using Google Chrome:
[XMLHttpRequest cannot load file. Received an invalid response. Origin 'null' is therefore not allowed access.]
Then create a batch file by following these steps:
Open notepad in Desktop.
start "chrome" "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --allow-file-access-from-files exit
This will do what? It will open Chrome.exe with file access. Now, from any location in your computer, browse your html files with Google Chrome. I hope this will solve the XMLHttpRequest problem.
Keep in mind : Just use the shortcut bat file to open Chrome when you require it. Tell me if it solves your problem. I had a similar problem and I solved it in this way. Thanks.
For application-wide settings and for global constants I recommend to use Settingslogic. This settings are stored in YML file and can be accessed from models, views and controllers. Furthermore, you can create different settings for all your environments:
# app/config/application.yml
defaults: &defaults
cool:
sweet: nested settings
neat_setting: 24
awesome_setting: <%= "Did you know 5 + 5 = #{5 + 5}?" %>
colors: "white blue black red green"
development:
<<: *defaults
neat_setting: 800
test:
<<: *defaults
production:
<<: *defaults
Somewhere in the view (I prefer helper methods for such kind of stuff) or in a model you can get, for ex., array of colors Settings.colors.split(/\s/)
. It's very flexible. And you don't need to invent a bike.
open the 'Finder' in Mac and Command+Shift+G and type in the path:/usr/local/zend/apache2/htdocs. path will open then create/paste your web page/application then check it on the browser.
I wasn't sure what you wanted to do about the Event column, but if you want to keep that as well, how about
isIDmax <- with(dd, ave(Value, ID, FUN=function(x) seq_along(x)==which.max(x)))==1
group[isIDmax, ]
# ID Value Event
# 3 1 5 2
# 7 2 17 2
# 9 3 5 2
Here we use ave
to look at the "Value" column for each "ID". Then we determine which value is the maximal and then turn that into a logical vector we can use to subset the original data.frame.
As stated in the other answer, width: auto doesn't work due to the width being generated by the input's size attribute, which cannot be set to "auto" or anything similar.
There are a few workarounds you can use to cause it to play nicely with the box model, but nothing fantastic as far as I know.
First you can set the padding in the field using percentages, making sure that the width adds up to 100%, e.g.:
input {
width: 98%;
padding: 1%;
}
Another thing you might try is using absolute positioning, with left and right set to 0. Using this markup:
<fieldset>
<input type="text" />
</fieldset>
And this CSS:
fieldset {
position: relative;
}
input {
position: absolute;
left: 0;
right: 0;
}
This absolute positioning will cause the input to fill the parent fieldset horizontally, regardless of the input's padding or margin. However a huge downside of this is that you now have to deal with the height of the fieldset, which will be 0 unless you set it. If your inputs are all the same height this will work for you, simply set the fieldset's height to whatever the input's height should be.
Other than this there are some JS solutions, but I don't like applying basic styling with JS.
Ideally the email content should be about 550px wide to fit within most email clients preview window. If you know for sure your target market can view bigger then you can design bigger. Loads of email examples over on http://www.beautiful-email-newsletters.com/
[x if x % 2 else x * 100 for x in range(1, 10) ]
Just add these lines to your <script>
(somewhere after jQuery is loaded but before posting anything):
$.postJSON = function(url, data, func)
{
$.post(url, data, func, 'json');
}
Replace (some/all) $.getJSON
with $.postJSON
and enjoy!
You can use the same Javascript callback functions as with $.getJSON
.
No server-side change is needed. (Well, I always recommend using $_REQUEST
in PHP. http://php.net/manual/en/reserved.variables.request.php, Among $_REQUEST, $_GET and $_POST which one is the fastest?)
This is simpler than @lepe's solution.
You can achieve almost everything in PROCESS_NUM
with this one-liner:
[ `pgrep $1` ] && return 1 || return 0
if you're looking for a partial match, i.e. program is named foobar and you want your $1
to be just foo you can add the -f switch
to pgrep:
[[ `pgrep -f $1` ]] && return 1 || return 0
Putting it all together your script could be reworked like this:
#!/bin/bash
check_process() {
echo "$ts: checking $1"
[ "$1" = "" ] && return 0
[ `pgrep -n $1` ] && return 1 || return 0
}
while [ 1 ]; do
# timestamp
ts=`date +%T`
echo "$ts: begin checking..."
check_process "dropbox"
[ $? -eq 0 ] && echo "$ts: not running, restarting..." && `dropbox start -i > /dev/null`
sleep 5
done
Running it would look like this:
# SHELL #1
22:07:26: begin checking...
22:07:26: checking dropbox
22:07:31: begin checking...
22:07:31: checking dropbox
# SHELL #2
$ dropbox stop
Dropbox daemon stopped.
# SHELL #1
22:07:36: begin checking...
22:07:36: checking dropbox
22:07:36: not running, restarting...
22:07:42: begin checking...
22:07:42: checking dropbox
Hope this helps!
To get the names of current directory we can use getcwd()
or dirname(__FILE__)
but getcwd()
and dirname(__FILE__)
are not synonymous. They do exactly what their names are. If your code is running by referring a class in another file which exists in some other directory then these both methods will return different results.
For example if I am calling a class, from where these two functions are invoked and the class exists in some /controller/goodclass.php
from /index.php
then getcwd()
will return '/
and dirname(__FILE__)
will return /controller
.
SELECT * FROM table SAMPLE(10) WHERE ROWNUM <= 20;
This is more efficient as it doesn't need to sort the Table.
This may be a more up-to-date answer, and is shorter, as things have been consolidated somewhat since this post. Requires jquery-ui-effect-highlight.
$("div").click(function () {
$(this).effect("highlight", {}, 3000);
});
In your adapter class, in onBindViewHolder method, set ViewHolder to setIsRecyclable(false) as in below code.
@Override
public void onBindViewHolder(RecyclerViewAdapter.ViewHolder p1, int p2)
{
// TODO: Implement this method
p1.setIsRecyclable(false);
// Then your other codes
}
Just check tsnnames.ora and listener.ora files. It should not have localhost as a server. change it to hostname.
Like in tnsnames.ora
LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
Replace localhost by hostname.
You can loop over each row of the DataTable
and check the value.
I'm a big fan of using a foreach loop when using IEnumerable
s. Makes it very simple and clean to look at or process each row
DataTable dtPs = // ... initialize your DataTable
foreach (DataRow dr in dtPs.Rows)
{
if (dr["item_manuf_id"].ToString() == "some value")
{
// do your deed
}
}
Alternatively you can use a PrimaryKey
for your DataTable
. This helps in various ways, but you often need to define one before you can use it.
An example of using one if at http://msdn.microsoft.com/en-us/library/z24kefs8(v=vs.80).aspx
DataTable workTable = new DataTable("Customers");
// set constraints on the primary key
DataColumn workCol = workTable.Columns.Add("CustID", typeof(Int32));
workCol.AllowDBNull = false;
workCol.Unique = true;
workTable.Columns.Add("CustLName", typeof(String));
workTable.Columns.Add("CustFName", typeof(String));
workTable.Columns.Add("Purchases", typeof(Double));
// set primary key
workTable.PrimaryKey = new DataColumn[] { workTable.Columns["CustID"] };
Once you have a primary key defined and data populated, you can use the Find(...) method to get the rows that match your primary key.
Take a look at http://msdn.microsoft.com/en-us/library/y06xa2h1(v=vs.80).aspx
DataRow drFound = dtPs.Rows.Find("some value");
if (drFound["item_manuf_id"].ToString() == "some value")
{
// do your deed
}
Finally, you can use the Select() method to find data within a DataTable
also found at at http://msdn.microsoft.com/en-us/library/y06xa2h1(v=vs.80).aspx.
String sExpression = "item_manuf_id == 'some value'";
DataRow[] drFound;
drFound = dtPs.Select(sExpression);
foreach (DataRow dr in drFound)
{
// do you deed. Each record here was already found to match your criteria
}
Pass the decode pattern to ParseExact
Dim d as string = "201210120956"
Dim dt = DateTime.ParseExact(d, "yyyyMMddhhmm", Nothing)
ParseExact is available only from Net FrameWork 2.0.
If you are still on 1.1 you could use Parse, but you need to provide the IFormatProvider adequate to your string
here, checking for the largest palindrome in a string, always starting from 1st char.
public static String largestPalindromeInString(String in) {
int right = in.length() - 1;
int left = 0;
char[] word = in.toCharArray();
while (right > left && word[right] != word[left]) {
right--;
}
int lenght = right + 1;
while (right > left && word[right] == word[left]) {
left++;
right--;
}
if (0 >= right - left) {
return new String(Arrays.copyOf(word, lenght ));
} else {
return largestPalindromeInString(
new String(Arrays.copyOf(word, in.length() - 1)));
}
}
in your server.py file make : host ='192.168.1.94'
instead of host = socket.gethostname()
Have you taken a look at ExpandoObject?
From MSDN:
The ExpandoObject class enables you to add and delete members of its instances at run time and also to set and get values of these members. This class supports dynamic binding, which enables you to use standard syntax like sampleObject.sampleMember instead of more complex syntax like sampleObject.GetAttribute("sampleMember").
Allowing you to do cool things like:
dynamic dynObject = new ExpandoObject();
dynObject.SomeDynamicProperty = "Hello!";
dynObject.SomeDynamicAction = (msg) =>
{
Console.WriteLine(msg);
};
dynObject.SomeDynamicAction(dynObject.SomeDynamicProperty);
Based on your actual code you may be more interested in:
public static dynamic GetDynamicObject(Dictionary<string, object> properties)
{
return new MyDynObject(properties);
}
public sealed class MyDynObject : DynamicObject
{
private readonly Dictionary<string, object> _properties;
public MyDynObject(Dictionary<string, object> properties)
{
_properties = properties;
}
public override IEnumerable<string> GetDynamicMemberNames()
{
return _properties.Keys;
}
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
if (_properties.ContainsKey(binder.Name))
{
result = _properties[binder.Name];
return true;
}
else
{
result = null;
return false;
}
}
public override bool TrySetMember(SetMemberBinder binder, object value)
{
if (_properties.ContainsKey(binder.Name))
{
_properties[binder.Name] = value;
return true;
}
else
{
return false;
}
}
}
That way you just need:
var dyn = GetDynamicObject(new Dictionary<string, object>()
{
{"prop1", 12},
});
Console.WriteLine(dyn.prop1);
dyn.prop1 = 150;
Deriving from DynamicObject allows you to come up with your own strategy for handling these dynamic member requests, beware there be monsters here: the compiler will not be able to verify a lot of your dynamic calls and you won't get intellisense, so just keep that in mind.
Based on average distance for degress in the Earth.
1° = 111km;
Converting this for radians and dividing for meters, take's a magic number for the RAD, in meters: 0.000008998719243599958;
then:
const RAD = 0.000008998719243599958;
Math.sqrt(Math.pow(lat1 - lat2, 2) + Math.pow(long1 - long2, 2)) / RAD;
Using the second form gives you a variable (named based upon the as
clause, in your example e
) in the except
block scope with the exception object bound to it so you can use the infomration in the exception (type, message, stack trace, etc) to handle the exception in a more specially tailored manor.
class CPerson:
def __init__(self, age):
self._age = age
def run(self):
pass
@property
def age(self): return self._age
@staticmethod
def my_static_method(): print("Life is short, you need Python")
@classmethod
def say(cls, msg): return msg
test_class = CPerson
# print(dir(test_class)) # list all the fields and methods of your object
print([(name, t) for name, t in test_class.__dict__.items() if type(t).__name__ == 'function' and not name.startswith('__')])
print([(name, t) for name, t in test_class.__dict__.items() if type(t).__name__ != 'function' and not name.startswith('__')])
output
[('run', <function CPerson.run at 0x0000000002AD3268>)]
[('age', <property object at 0x0000000002368688>), ('my_static_method', <staticmethod object at 0x0000000002ACBD68>), ('say', <classmethod object at 0x0000000002ACF0B8>)]
I used attached behaviours to close the window. Bind a "signal" property on your ViewModel to the attached behaviour (I actually use a trigger) When it's set to true, the behaviour closes the window.
http://adammills.wordpress.com/2009/07/01/window-close-from-xaml/
Use Microsoft Sysinternals Sigcheck. This sample outputs just the version:
sigcheck -q -n foo.dll
Unpacked sigcheck.exe is only 228 KB.
$('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {_x000D_
var target = $(e.target).attr("href") // activated tab_x000D_
alert(target);_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
_x000D_
<ul id="myTab" class="nav nav-tabs">_x000D_
<li class="active"><a href="#home" data-toggle="tab">Home</a></li>_x000D_
<li class=""><a href="#profile" data-toggle="tab">Profile</a></li>_x000D_
</ul>_x000D_
<div id="myTabContent" class="tab-content">_x000D_
<div class="tab-pane fade active in" id="home">_x000D_
home tab!_x000D_
</div>_x000D_
<div class="tab-pane fade" id="profile">_x000D_
profile tab!_x000D_
</div>_x000D_
</div>
_x000D_
A more pythonic way would be:
try:
os.remove(filename)
except OSError:
pass
Although this takes even more lines and looks very ugly, it avoids the unnecessary call to os.path.exists()
and follows the python convention of overusing exceptions.
It may be worthwhile to write a function to do this for you:
import os, errno
def silentremove(filename):
try:
os.remove(filename)
except OSError as e: # this would be "except OSError, e:" before Python 2.6
if e.errno != errno.ENOENT: # errno.ENOENT = no such file or directory
raise # re-raise exception if a different error occurred
The answer points out that @
is invalid for newer jQuery iterations. While that's correct, some older IEs still dont hide option elements. For anyone having to deal with hiding option elements in those versions affected, I posted a workaround here:
http://work.arounds.org/issue/96/option-elements-do-not-hide-in-IE/
Basically just wrap it with a span and replace on show.
Implement Comparable interface to Fruit.
public class Fruit implements Comparable<Fruit> {
It implements the method
@Override
public int compareTo(Fruit fruit) {
//write code here for compare name
}
Then do call sort method
Collections.sort(fruitList);
Add environment variable for Android Home Targetting Platform Tools
echo 'export ANDROID_HOME=/Users/$USER/Library/Android/sdk' >> ~/.bash_profile
echo 'export PATH=${PATH}:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools' >> ~/.bash_profile
Restart Bash
source ~/.bash_profile
Now Check adb
Simply type
adb
on terminal
For me the dialogue appears more than one if I click the dpFlightDate edit text more than one time same for the timmer dialog . how can I avoid this dialog to appear only once and if the user click's 2nd time the dialog must not appear again ie if dialog is on the screen ?
// perform click event on edit text
dpFlightDate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// calender class's instance and get current date , month and year from calender
final Calendar c = Calendar.getInstance();
int mYear = c.get(Calendar.YEAR); // current year
int mMonth = c.get(Calendar.MONTH); // current month
int mDay = c.get(Calendar.DAY_OF_MONTH); // current day
// date picker dialog
datePickerDialog = new DatePickerDialog(frmFlightDetails.this,
new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
// set day of month , month and year value in the edit text
dpFlightDate.setText(dayOfMonth + "/"
+ (monthOfYear + 1) + "/" + year);
}
}, mYear, mMonth, mDay);
datePickerDialog.show();
}
});
tpFlightTime.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Use the current time as the default values for the picker
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
// Create a new instance of TimePickerDialog
timePickerDialog = new TimePickerDialog(frmFlightDetails.this, new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
tpFlightTime.setText( selectedHour + ":" + selectedMinute);
}
}, hour, minute, true);//Yes 24 hour time
timePickerDialog.setTitle("Select Time");
timePickerDialog.show();
}
});
When you have 'NA' values in the column, then
sum(as.numeric(JuneData1$Account.Balance), na.rm = TRUE)
Isodate seems to have the most complete support.
If you know what context managers are then you need nothing more to understand __enter__
and __exit__
magic methods. Lets see a very simple example.
In this example I am opening myfile.txt with help of open function. The try/finally block ensures that even if an unexpected exception occurs myfile.txt will be closed.
fp=open(r"C:\Users\SharpEl\Desktop\myfile.txt")
try:
for line in fp:
print(line)
finally:
fp.close()
Now I am opening same file with with statement:
with open(r"C:\Users\SharpEl\Desktop\myfile.txt") as fp:
for line in fp:
print(line)
If you look at the code, I didn't close the file & there is no try/finally block. Because with statement automatically closes myfile.txt . You can even check it by calling print(fp.closed)
attribute -- which returns True
.
This is because the file objects (fp in my example) returned by open function has two built-in methods __enter__
and __exit__
. It is also known as context manager. __enter__
method is called at the start of with block and __exit__
method is called at the end. Note: with statement only works with objects that support the context mamangement protocol i.e. they have __enter__
and __exit__
methods. A class which implement both methods is known as context manager class.
Now lets define our own context manager class.
class Log:
def __init__(self,filename):
self.filename=filename
self.fp=None
def logging(self,text):
self.fp.write(text+'\n')
def __enter__(self):
print("__enter__")
self.fp=open(self.filename,"a+")
return self
def __exit__(self, exc_type, exc_val, exc_tb):
print("__exit__")
self.fp.close()
with Log(r"C:\Users\SharpEl\Desktop\myfile.txt") as logfile:
print("Main")
logfile.logging("Test1")
logfile.logging("Test2")
I hope now you have basic understanding of both __enter__
and __exit__
magic methods.
Put the entire script into a template string, with {SERVERNAME} placeholders. Then edit the string using:
SET @SQL_SCRIPT = REPLACE(@TEMPLATE, '{SERVERNAME}', @DBNAME)
and then run it with
EXECUTE (@SQL_SCRIPT)
It's hard to believe that, in the course of three years, nobody noticed that my code doesn't work!
You can't EXEC
multiple batches. GO
is a batch separator, not a T-SQL statement. It's necessary to build three separate strings, and then to EXEC
each one after substitution.
I suppose one could do something "clever" by breaking the single template string into multiple rows by splitting on GO
; I've done that in ADO.NET code.
And where did I get the word "SERVERNAME" from?
Here's some code that I just tested (and which works):
DECLARE @DBNAME VARCHAR(255)
SET @DBNAME = 'TestDB'
DECLARE @CREATE_TEMPLATE VARCHAR(MAX)
DECLARE @COMPAT_TEMPLATE VARCHAR(MAX)
DECLARE @RECOVERY_TEMPLATE VARCHAR(MAX)
SET @CREATE_TEMPLATE = 'CREATE DATABASE {DBNAME}'
SET @COMPAT_TEMPLATE='ALTER DATABASE {DBNAME} SET COMPATIBILITY_LEVEL = 90'
SET @RECOVERY_TEMPLATE='ALTER DATABASE {DBNAME} SET RECOVERY SIMPLE'
DECLARE @SQL_SCRIPT VARCHAR(MAX)
SET @SQL_SCRIPT = REPLACE(@CREATE_TEMPLATE, '{DBNAME}', @DBNAME)
EXECUTE (@SQL_SCRIPT)
SET @SQL_SCRIPT = REPLACE(@COMPAT_TEMPLATE, '{DBNAME}', @DBNAME)
EXECUTE (@SQL_SCRIPT)
SET @SQL_SCRIPT = REPLACE(@RECOVERY_TEMPLATE, '{DBNAME}', @DBNAME)
EXECUTE (@SQL_SCRIPT)
The default behavior is:
If the parameter is a primitive type (int
, bool
, double
, ...), Web API tries to get the value from the URI of the HTTP request.
For complex types (your own object, for example: Person
), Web API tries to read the value from the body of the HTTP request.
So, if you have:
...then you don't have to add any attributes (neither [FromBody]
nor [FromUri]
).
But, if you have a primitive type in the body, then you have to add [FromBody]
in front of your primitive type parameter in your WebAPI controller method. (Because, by default, WebAPI is looking for primitive types in the URI of the HTTP request.)
Or, if you have a complex type in your URI, then you must add [FromUri]
. (Because, by default, WebAPI is looking for complex types in the body of the HTTP request by default.)
Primitive types:
public class UsersController : ApiController
{
// api/users
public HttpResponseMessage Post([FromBody]int id)
{
}
// api/users/id
public HttpResponseMessage Post(int id)
{
}
}
Complex types:
public class UsersController : ApiController
{
// api/users
public HttpResponseMessage Post(User user)
{
}
// api/users/user
public HttpResponseMessage Post([FromUri]User user)
{
}
}
This works as long as you send only one parameter in your HTTP request. When sending multiple, you need to create a custom model which has all your parameters like this:
public class MyModel
{
public string MyProperty { get; set; }
public string MyProperty2 { get; set; }
}
[Route("search")]
[HttpPost]
public async Task<dynamic> Search([FromBody] MyModel model)
{
// model.MyProperty;
// model.MyProperty2;
}
From Microsoft's documentation for parameter binding in ASP.NET Web API:
When a parameter has [FromBody], Web API uses the Content-Type header to select a formatter. In this example, the content type is "application/json" and the request body is a raw JSON string (not a JSON object). At most one parameter is allowed to read from the message body.
This should work:
public HttpResponseMessage Post([FromBody] string name) { ... }
This will not work:
// Caution: This won't work! public HttpResponseMessage Post([FromBody] int id, [FromBody] string name) { ... }
The reason for this rule is that the request body might be stored in a non-buffered stream that can only be read once.
For my small dataset, Oracle gives almost all of these queries the exact same plan that uses the primary key indexes without touching the table. The exception is the MINUS version which manages to do fewer consistent gets despite the higher plan cost.
--Create Sample Data.
d r o p table tableA;
d r o p table tableB;
create table tableA as (
select rownum-1 ID, chr(rownum-1+70) bb, chr(rownum-1+100) cc
from dual connect by rownum<=4
);
create table tableB as (
select rownum ID, chr(rownum+70) data1, chr(rownum+100) cc from dual
UNION ALL
select rownum+2 ID, chr(rownum+70) data1, chr(rownum+100) cc
from dual connect by rownum<=3
);
a l t e r table tableA Add Primary Key (ID);
a l t e r table tableB Add Primary Key (ID);
--View Tables.
select * from tableA;
select * from tableB;
--Find all rows in tableA that don't have a corresponding row in tableB.
--Method 1.
SELECT id FROM tableA WHERE id NOT IN (SELECT id FROM tableB) ORDER BY id DESC;
--Method 2.
SELECT tableA.id FROM tableA LEFT JOIN tableB ON (tableA.id = tableB.id)
WHERE tableB.id IS NULL ORDER BY tableA.id DESC;
--Method 3.
SELECT id FROM tableA a WHERE NOT EXISTS (SELECT 1 FROM tableB b WHERE b.id = a.id)
ORDER BY id DESC;
--Method 4.
SELECT id FROM tableA
MINUS
SELECT id FROM tableB ORDER BY id DESC;
private static final int MIN_METERS = 100;
private static final int JUMP_BY = 50;
metersText.setText(meters+"");
metersBar.setProgress((meters-MIN_METERS));
metersBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {
progress = progress + MIN_METERS;
progress = progress / JUMP_BY;
progress = progress * JUMP_BY;
metersText.setText((progress)+"");
}
});
}
I found my answer.
<?php
$profpic = "bg.jpg";
?>
<html>
<head>
<style type="text/css">
body {
background-image: url('<?php echo $profpic;?>');
}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Hey</title>
</head>
<body>
</body>
</html>
I found a good answer by gnarf my self which is exactly what I was looking for :)
jQuery ajaxQueue
//This handles the queues
(function($) {
var ajaxQueue = $({});
$.ajaxQueue = function(ajaxOpts) {
var oldComplete = ajaxOpts.complete;
ajaxQueue.queue(function(next) {
ajaxOpts.complete = function() {
if (oldComplete) oldComplete.apply(this, arguments);
next();
};
$.ajax(ajaxOpts);
});
};
})(jQuery);
Then you can add a ajax request to the queue like this:
$.ajaxQueue({
url: 'page.php',
data: {id: 1},
type: 'POST',
success: function(data) {
$('#status').html(data);
}
});
you have to pass values with the single quotes
$(document).ready(function() {
$("#raaagh").click(function(){
$.ajax({
url: 'ajax.php', //This is the current doc
type: "POST",
data: ({name: '145'}), //variables should be pass like this
success: function(data){
console.log(data);
}
});
$.ajax({
url:'ajax.php',
data:"",
dataType:'json',
success:function(data1){
var y1=data1;
console.log(data1);
}
});
});
});
try it it may work.......
For Apache HttpClient 4.5 or newer version:
CloseableHttpClient httpclient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost("http://targethost/login");
String JSON_STRING="";
HttpEntity stringEntity = new StringEntity(JSON_STRING,ContentType.APPLICATION_JSON);
httpPost.setEntity(stringEntity);
CloseableHttpResponse response2 = httpclient.execute(httpPost);
Note:
1 in order to make the code compile, both httpclient
package and httpcore
package should be imported.
2 try-catch block has been ommitted.
Reference: appache official guide
the Commons HttpClient project is now end of life, and is no longer being developed. It has been replaced by the Apache HttpComponents project in its HttpClient and HttpCore modules
I wrote a full replacement for sys.stderr
and just duplicated the code renaming stderr
to stdout
to make it also available to replace sys.stdout
.
To do this I create the same object type as the current stderr
and stdout
, and forward all methods to the original system stderr
and stdout
:
import os
import sys
import logging
class StdErrReplament(object):
"""
How to redirect stdout and stderr to logger in Python
https://stackoverflow.com/questions/19425736/how-to-redirect-stdout-and-stderr-to-logger-in-python
Set a Read-Only Attribute in Python?
https://stackoverflow.com/questions/24497316/set-a-read-only-attribute-in-python
"""
is_active = False
@classmethod
def lock(cls, logger):
"""
Attach this singleton logger to the `sys.stderr` permanently.
"""
global _stderr_singleton
global _stderr_default
global _stderr_default_class_type
# On Sublime Text, `sys.__stderr__` is set to None, because they already replaced `sys.stderr`
# by some `_LogWriter()` class, then just save the current one over there.
if not sys.__stderr__:
sys.__stderr__ = sys.stderr
try:
_stderr_default
_stderr_default_class_type
except NameError:
_stderr_default = sys.stderr
_stderr_default_class_type = type( _stderr_default )
# Recreate the sys.stderr logger when it was reset by `unlock()`
if not cls.is_active:
cls.is_active = True
_stderr_write = _stderr_default.write
logger_call = logger.debug
clean_formatter = logger.clean_formatter
global _sys_stderr_write
global _sys_stderr_write_hidden
if sys.version_info <= (3,2):
logger.file_handler.terminator = '\n'
# Always recreate/override the internal write function used by `_sys_stderr_write`
def _sys_stderr_write_hidden(*args, **kwargs):
"""
Suppress newline in Python logging module
https://stackoverflow.com/questions/7168790/suppress-newline-in-python-logging-module
"""
try:
_stderr_write( *args, **kwargs )
file_handler = logger.file_handler
formatter = file_handler.formatter
terminator = file_handler.terminator
file_handler.formatter = clean_formatter
file_handler.terminator = ""
kwargs['extra'] = {'_duplicated_from_file': True}
logger_call( *args, **kwargs )
file_handler.formatter = formatter
file_handler.terminator = terminator
except Exception:
logger.exception( "Could not write to the file_handler: %s(%s)", file_handler, logger )
cls.unlock()
# Only create one `_sys_stderr_write` function pointer ever
try:
_sys_stderr_write
except NameError:
def _sys_stderr_write(*args, **kwargs):
"""
Hides the actual function pointer. This allow the external function pointer to
be cached while the internal written can be exchanged between the standard
`sys.stderr.write` and our custom wrapper around it.
"""
_sys_stderr_write_hidden( *args, **kwargs )
try:
# Only create one singleton instance ever
_stderr_singleton
except NameError:
class StdErrReplamentHidden(_stderr_default_class_type):
"""
Which special methods bypasses __getattribute__ in Python?
https://stackoverflow.com/questions/12872695/which-special-methods-bypasses-getattribute-in-python
"""
if hasattr( _stderr_default, "__abstractmethods__" ):
__abstractmethods__ = _stderr_default.__abstractmethods__
if hasattr( _stderr_default, "__base__" ):
__base__ = _stderr_default.__base__
if hasattr( _stderr_default, "__bases__" ):
__bases__ = _stderr_default.__bases__
if hasattr( _stderr_default, "__basicsize__" ):
__basicsize__ = _stderr_default.__basicsize__
if hasattr( _stderr_default, "__call__" ):
__call__ = _stderr_default.__call__
if hasattr( _stderr_default, "__class__" ):
__class__ = _stderr_default.__class__
if hasattr( _stderr_default, "__delattr__" ):
__delattr__ = _stderr_default.__delattr__
if hasattr( _stderr_default, "__dict__" ):
__dict__ = _stderr_default.__dict__
if hasattr( _stderr_default, "__dictoffset__" ):
__dictoffset__ = _stderr_default.__dictoffset__
if hasattr( _stderr_default, "__dir__" ):
__dir__ = _stderr_default.__dir__
if hasattr( _stderr_default, "__doc__" ):
__doc__ = _stderr_default.__doc__
if hasattr( _stderr_default, "__eq__" ):
__eq__ = _stderr_default.__eq__
if hasattr( _stderr_default, "__flags__" ):
__flags__ = _stderr_default.__flags__
if hasattr( _stderr_default, "__format__" ):
__format__ = _stderr_default.__format__
if hasattr( _stderr_default, "__ge__" ):
__ge__ = _stderr_default.__ge__
if hasattr( _stderr_default, "__getattribute__" ):
__getattribute__ = _stderr_default.__getattribute__
if hasattr( _stderr_default, "__gt__" ):
__gt__ = _stderr_default.__gt__
if hasattr( _stderr_default, "__hash__" ):
__hash__ = _stderr_default.__hash__
if hasattr( _stderr_default, "__init__" ):
__init__ = _stderr_default.__init__
if hasattr( _stderr_default, "__init_subclass__" ):
__init_subclass__ = _stderr_default.__init_subclass__
if hasattr( _stderr_default, "__instancecheck__" ):
__instancecheck__ = _stderr_default.__instancecheck__
if hasattr( _stderr_default, "__itemsize__" ):
__itemsize__ = _stderr_default.__itemsize__
if hasattr( _stderr_default, "__le__" ):
__le__ = _stderr_default.__le__
if hasattr( _stderr_default, "__lt__" ):
__lt__ = _stderr_default.__lt__
if hasattr( _stderr_default, "__module__" ):
__module__ = _stderr_default.__module__
if hasattr( _stderr_default, "__mro__" ):
__mro__ = _stderr_default.__mro__
if hasattr( _stderr_default, "__name__" ):
__name__ = _stderr_default.__name__
if hasattr( _stderr_default, "__ne__" ):
__ne__ = _stderr_default.__ne__
if hasattr( _stderr_default, "__new__" ):
__new__ = _stderr_default.__new__
if hasattr( _stderr_default, "__prepare__" ):
__prepare__ = _stderr_default.__prepare__
if hasattr( _stderr_default, "__qualname__" ):
__qualname__ = _stderr_default.__qualname__
if hasattr( _stderr_default, "__reduce__" ):
__reduce__ = _stderr_default.__reduce__
if hasattr( _stderr_default, "__reduce_ex__" ):
__reduce_ex__ = _stderr_default.__reduce_ex__
if hasattr( _stderr_default, "__repr__" ):
__repr__ = _stderr_default.__repr__
if hasattr( _stderr_default, "__setattr__" ):
__setattr__ = _stderr_default.__setattr__
if hasattr( _stderr_default, "__sizeof__" ):
__sizeof__ = _stderr_default.__sizeof__
if hasattr( _stderr_default, "__str__" ):
__str__ = _stderr_default.__str__
if hasattr( _stderr_default, "__subclasscheck__" ):
__subclasscheck__ = _stderr_default.__subclasscheck__
if hasattr( _stderr_default, "__subclasses__" ):
__subclasses__ = _stderr_default.__subclasses__
if hasattr( _stderr_default, "__subclasshook__" ):
__subclasshook__ = _stderr_default.__subclasshook__
if hasattr( _stderr_default, "__text_signature__" ):
__text_signature__ = _stderr_default.__text_signature__
if hasattr( _stderr_default, "__weakrefoffset__" ):
__weakrefoffset__ = _stderr_default.__weakrefoffset__
if hasattr( _stderr_default, "mro" ):
mro = _stderr_default.mro
def __init__(self):
"""
Override any super class `type( _stderr_default )` constructor, so we can
instantiate any kind of `sys.stderr` replacement object, in case it was already
replaced by something else like on Sublime Text with `_LogWriter()`.
Assures all attributes were statically replaced just above. This should happen in case
some new attribute is added to the python language.
This also ignores the only two methods which are not equal, `__init__()` and `__getattribute__()`.
"""
different_methods = ("__init__", "__getattribute__")
attributes_to_check = set( dir( object ) + dir( type ) )
for attribute in attributes_to_check:
if attribute not in different_methods \
and hasattr( _stderr_default, attribute ):
base_class_attribute = super( _stderr_default_class_type, self ).__getattribute__( attribute )
target_class_attribute = _stderr_default.__getattribute__( attribute )
if base_class_attribute != target_class_attribute:
sys.stderr.write( " The base class attribute `%s` is different from the target class:\n%s\n%s\n\n" % (
attribute, base_class_attribute, target_class_attribute ) )
def __getattribute__(self, item):
if item == 'write':
return _sys_stderr_write
try:
return _stderr_default.__getattribute__( item )
except AttributeError:
return super( _stderr_default_class_type, _stderr_default ).__getattribute__( item )
_stderr_singleton = StdErrReplamentHidden()
sys.stderr = _stderr_singleton
return cls
@classmethod
def unlock(cls):
"""
Detach this `stderr` writer from `sys.stderr` and allow the next call to `lock()` create
a new writer for the stderr.
"""
if cls.is_active:
global _sys_stderr_write_hidden
cls.is_active = False
_sys_stderr_write_hidden = _stderr_default.write
class StdOutReplament(object):
"""
How to redirect stdout and stderr to logger in Python
https://stackoverflow.com/questions/19425736/how-to-redirect-stdout-and-stderr-to-logger-in-python
Set a Read-Only Attribute in Python?
https://stackoverflow.com/questions/24497316/set-a-read-only-attribute-in-python
"""
is_active = False
@classmethod
def lock(cls, logger):
"""
Attach this singleton logger to the `sys.stdout` permanently.
"""
global _stdout_singleton
global _stdout_default
global _stdout_default_class_type
# On Sublime Text, `sys.__stdout__` is set to None, because they already replaced `sys.stdout`
# by some `_LogWriter()` class, then just save the current one over there.
if not sys.__stdout__:
sys.__stdout__ = sys.stdout
try:
_stdout_default
_stdout_default_class_type
except NameError:
_stdout_default = sys.stdout
_stdout_default_class_type = type( _stdout_default )
# Recreate the sys.stdout logger when it was reset by `unlock()`
if not cls.is_active:
cls.is_active = True
_stdout_write = _stdout_default.write
logger_call = logger.debug
clean_formatter = logger.clean_formatter
global _sys_stdout_write
global _sys_stdout_write_hidden
if sys.version_info <= (3,2):
logger.file_handler.terminator = '\n'
# Always recreate/override the internal write function used by `_sys_stdout_write`
def _sys_stdout_write_hidden(*args, **kwargs):
"""
Suppress newline in Python logging module
https://stackoverflow.com/questions/7168790/suppress-newline-in-python-logging-module
"""
try:
_stdout_write( *args, **kwargs )
file_handler = logger.file_handler
formatter = file_handler.formatter
terminator = file_handler.terminator
file_handler.formatter = clean_formatter
file_handler.terminator = ""
kwargs['extra'] = {'_duplicated_from_file': True}
logger_call( *args, **kwargs )
file_handler.formatter = formatter
file_handler.terminator = terminator
except Exception:
logger.exception( "Could not write to the file_handler: %s(%s)", file_handler, logger )
cls.unlock()
# Only create one `_sys_stdout_write` function pointer ever
try:
_sys_stdout_write
except NameError:
def _sys_stdout_write(*args, **kwargs):
"""
Hides the actual function pointer. This allow the external function pointer to
be cached while the internal written can be exchanged between the standard
`sys.stdout.write` and our custom wrapper around it.
"""
_sys_stdout_write_hidden( *args, **kwargs )
try:
# Only create one singleton instance ever
_stdout_singleton
except NameError:
class StdOutReplamentHidden(_stdout_default_class_type):
"""
Which special methods bypasses __getattribute__ in Python?
https://stackoverflow.com/questions/12872695/which-special-methods-bypasses-getattribute-in-python
"""
if hasattr( _stdout_default, "__abstractmethods__" ):
__abstractmethods__ = _stdout_default.__abstractmethods__
if hasattr( _stdout_default, "__base__" ):
__base__ = _stdout_default.__base__
if hasattr( _stdout_default, "__bases__" ):
__bases__ = _stdout_default.__bases__
if hasattr( _stdout_default, "__basicsize__" ):
__basicsize__ = _stdout_default.__basicsize__
if hasattr( _stdout_default, "__call__" ):
__call__ = _stdout_default.__call__
if hasattr( _stdout_default, "__class__" ):
__class__ = _stdout_default.__class__
if hasattr( _stdout_default, "__delattr__" ):
__delattr__ = _stdout_default.__delattr__
if hasattr( _stdout_default, "__dict__" ):
__dict__ = _stdout_default.__dict__
if hasattr( _stdout_default, "__dictoffset__" ):
__dictoffset__ = _stdout_default.__dictoffset__
if hasattr( _stdout_default, "__dir__" ):
__dir__ = _stdout_default.__dir__
if hasattr( _stdout_default, "__doc__" ):
__doc__ = _stdout_default.__doc__
if hasattr( _stdout_default, "__eq__" ):
__eq__ = _stdout_default.__eq__
if hasattr( _stdout_default, "__flags__" ):
__flags__ = _stdout_default.__flags__
if hasattr( _stdout_default, "__format__" ):
__format__ = _stdout_default.__format__
if hasattr( _stdout_default, "__ge__" ):
__ge__ = _stdout_default.__ge__
if hasattr( _stdout_default, "__getattribute__" ):
__getattribute__ = _stdout_default.__getattribute__
if hasattr( _stdout_default, "__gt__" ):
__gt__ = _stdout_default.__gt__
if hasattr( _stdout_default, "__hash__" ):
__hash__ = _stdout_default.__hash__
if hasattr( _stdout_default, "__init__" ):
__init__ = _stdout_default.__init__
if hasattr( _stdout_default, "__init_subclass__" ):
__init_subclass__ = _stdout_default.__init_subclass__
if hasattr( _stdout_default, "__instancecheck__" ):
__instancecheck__ = _stdout_default.__instancecheck__
if hasattr( _stdout_default, "__itemsize__" ):
__itemsize__ = _stdout_default.__itemsize__
if hasattr( _stdout_default, "__le__" ):
__le__ = _stdout_default.__le__
if hasattr( _stdout_default, "__lt__" ):
__lt__ = _stdout_default.__lt__
if hasattr( _stdout_default, "__module__" ):
__module__ = _stdout_default.__module__
if hasattr( _stdout_default, "__mro__" ):
__mro__ = _stdout_default.__mro__
if hasattr( _stdout_default, "__name__" ):
__name__ = _stdout_default.__name__
if hasattr( _stdout_default, "__ne__" ):
__ne__ = _stdout_default.__ne__
if hasattr( _stdout_default, "__new__" ):
__new__ = _stdout_default.__new__
if hasattr( _stdout_default, "__prepare__" ):
__prepare__ = _stdout_default.__prepare__
if hasattr( _stdout_default, "__qualname__" ):
__qualname__ = _stdout_default.__qualname__
if hasattr( _stdout_default, "__reduce__" ):
__reduce__ = _stdout_default.__reduce__
if hasattr( _stdout_default, "__reduce_ex__" ):
__reduce_ex__ = _stdout_default.__reduce_ex__
if hasattr( _stdout_default, "__repr__" ):
__repr__ = _stdout_default.__repr__
if hasattr( _stdout_default, "__setattr__" ):
__setattr__ = _stdout_default.__setattr__
if hasattr( _stdout_default, "__sizeof__" ):
__sizeof__ = _stdout_default.__sizeof__
if hasattr( _stdout_default, "__str__" ):
__str__ = _stdout_default.__str__
if hasattr( _stdout_default, "__subclasscheck__" ):
__subclasscheck__ = _stdout_default.__subclasscheck__
if hasattr( _stdout_default, "__subclasses__" ):
__subclasses__ = _stdout_default.__subclasses__
if hasattr( _stdout_default, "__subclasshook__" ):
__subclasshook__ = _stdout_default.__subclasshook__
if hasattr( _stdout_default, "__text_signature__" ):
__text_signature__ = _stdout_default.__text_signature__
if hasattr( _stdout_default, "__weakrefoffset__" ):
__weakrefoffset__ = _stdout_default.__weakrefoffset__
if hasattr( _stdout_default, "mro" ):
mro = _stdout_default.mro
def __init__(self):
"""
Override any super class `type( _stdout_default )` constructor, so we can
instantiate any kind of `sys.stdout` replacement object, in case it was already
replaced by something else like on Sublime Text with `_LogWriter()`.
Assures all attributes were statically replaced just above. This should happen in case
some new attribute is added to the python language.
This also ignores the only two methods which are not equal, `__init__()` and `__getattribute__()`.
"""
different_methods = ("__init__", "__getattribute__")
attributes_to_check = set( dir( object ) + dir( type ) )
for attribute in attributes_to_check:
if attribute not in different_methods \
and hasattr( _stdout_default, attribute ):
base_class_attribute = super( _stdout_default_class_type, self ).__getattribute__( attribute )
target_class_attribute = _stdout_default.__getattribute__( attribute )
if base_class_attribute != target_class_attribute:
sys.stdout.write( " The base class attribute `%s` is different from the target class:\n%s\n%s\n\n" % (
attribute, base_class_attribute, target_class_attribute ) )
def __getattribute__(self, item):
if item == 'write':
return _sys_stdout_write
try:
return _stdout_default.__getattribute__( item )
except AttributeError:
return super( _stdout_default_class_type, _stdout_default ).__getattribute__( item )
_stdout_singleton = StdOutReplamentHidden()
sys.stdout = _stdout_singleton
return cls
@classmethod
def unlock(cls):
"""
Detach this `stdout` writer from `sys.stdout` and allow the next call to `lock()` create
a new writer for the stdout.
"""
if cls.is_active:
global _sys_stdout_write_hidden
cls.is_active = False
_sys_stdout_write_hidden = _stdout_default.write
To use this you can just call StdErrReplament::lock(logger)
and StdOutReplament::lock(logger)
passing the logger you want to use to send the output text. For example:
import os
import sys
import logging
current_folder = os.path.dirname( os.path.realpath( __file__ ) )
log_file_path = os.path.join( current_folder, "my_log_file.txt" )
file_handler = logging.FileHandler( log_file_path, 'a' )
file_handler.formatter = logging.Formatter( "%(asctime)s %(name)s %(levelname)s - %(message)s", "%Y-%m-%d %H:%M:%S" )
log = logging.getLogger( __name__ )
log.setLevel( "DEBUG" )
log.addHandler( file_handler )
log.file_handler = file_handler
log.clean_formatter = logging.Formatter( "", "" )
StdOutReplament.lock( log )
StdErrReplament.lock( log )
log.debug( "I am doing usual logging debug..." )
sys.stderr.write( "Tests 1...\n" )
sys.stdout.write( "Tests 2...\n" )
Running this code, you will see on the screen:
And on the file contents:
If you would like to also see the contents of the log.debug
calls on the screen, you will need to add a stream handler to your logger. On this case it would be like this:
import os
import sys
import logging
class ContextFilter(logging.Filter):
""" This filter avoids duplicated information to be displayed to the StreamHandler log. """
def filter(self, record):
return not "_duplicated_from_file" in record.__dict__
current_folder = os.path.dirname( os.path.realpath( __file__ ) )
log_file_path = os.path.join( current_folder, "my_log_file.txt" )
stream_handler = logging.StreamHandler()
file_handler = logging.FileHandler( log_file_path, 'a' )
formatter = logging.Formatter( "%(asctime)s %(name)s %(levelname)s - %(message)s", "%Y-%m-%d %H:%M:%S" )
file_handler.formatter = formatter
stream_handler.formatter = formatter
stream_handler.addFilter( ContextFilter() )
log = logging.getLogger( __name__ )
log.setLevel( "DEBUG" )
log.addHandler( file_handler )
log.addHandler( stream_handler )
log.file_handler = file_handler
log.stream_handler = stream_handler
log.clean_formatter = logging.Formatter( "", "" )
StdOutReplament.lock( log )
StdErrReplament.lock( log )
log.debug( "I am doing usual logging debug..." )
sys.stderr.write( "Tests 1...\n" )
sys.stdout.write( "Tests 2...\n" )
Which would output like this when running:
While it would still saving this to the file my_log_file.txt
:
When disabling this with StdErrReplament:unlock()
, it will only restore the standard behavior of the stderr
stream, as the attached logger cannot be never detached because someone else can have a reference to its older version. This is why it is a global singleton which can never dies. Therefore, in case of reloading this module with imp
or something else, it will never recapture the current sys.stderr
as it was already injected on it and have it saved internally.
You can directly access BODY.values
:
for (var ln = 0; ln < names.length; ln++) {
var item1 = {
"person": {
"_path": "/people/"+names[ln],
},
};
BODY.values.push(item1);
}
import java.util.Scanner;
public class Print {
public static void main(String[] args) {
int row,temp,c,n;
Scanner s=new Scanner(System.in);
n=s.nextInt();
temp = n;
for ( row = 1 ; row <= n ; row++ )
{
for ( c = 1 ; c < temp ; c++ )
System.out.print(" ");
temp--;
for ( c = 1 ; c <= 2*row - 1 ; c++ )
System.out.print("*");
System.out.println("");
}
}
}
As of today, your best bet is to use:
img = cv2.imread(image_path) # reads an image in the BGR format
img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) # BGR -> RGB
You'll see img
will be a numpy array of type:
<class 'numpy.ndarray'>
Try this. It works for me:
yarn run lint --fix
or
npm run lint -- --fix
Had the same problem and just want to add that AndroidManifest.xml also needs this permission:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
With text files, maybe the EOF is -1 when using BufferReader.read(), char by char. I made a test with BufferReader.readLine()!=null and it worked properly.
SQL: show full processlist;
This is what the MySQL Workbench does.
Microsoft also release the Microsoft Visual Studio 2015 Installer Projects Extension This is the same extension as the 2013 version but for Visual Studio 2015
Another cause: store_result() cannot be called twice.
For instance, in the following code, Error 5 is printed.
<?php
$db = new mysqli("localhost", "something", "something", "something");
$stmt = $db->stmt_init();
if ($stmt->error) printf("Error 1 : %s\n", $stmt->error);
$stmt->prepare("select 1");
if ($stmt->error) printf("Error 2 : %s\n", $stmt->error);
$stmt->execute();
if ($stmt->error) printf("Error 3 : %s\n", $stmt->error);
$stmt->store_result();
if ($stmt->error) printf("Error 4 : %s\n", $stmt->error);
$stmt->store_result();
if ($stmt->error) printf("Error 5 : %s\n", $stmt->error);
(This may not be relevant to the original sample code, but it can be relevant to people seeking answers to this error.)
@ng-bootstrap/ng-bootstrap npm I m using for this as in the project bootstrap is used, for material, we used dialog
HTML Code
<span (click)="openModal(modalRef)" class="form-control input-underline pl-3 ">Open Abc Modal
</span>
Modal template
<ng-template class="custom-modal" #modalRef let-c="close" let-d="dismiss">
<div class="modal-header custom-modal-head"><h4 class="modal-title">List of Countries</h4>
<button type="button" class="close" aria-label="Close" (click)="d('Cross click')">
<img src="assets/actor/images/close.png" alt="">
</button>
</div>
<div class="modal-body country-select">
<div class="serch-field">
<div class="row">
<div class="col-md-12">
<input type="text" class="form-control input-underline pl-3" placeholder="Search Country"
[(ngModel)]="countryWorkQuery" [ngModelOptions]="{standalone: true}">
<ul *ngIf="countries" class="ng-star-inserted">
<li (click)="setSelectedCountry(cntry, 'work');d('Cross click');" class="cursor-pointer"
*ngFor="let cntry of countries | filterNames:countryWorkQuery ">{{cntry.name}}</li>
</ul>
<span *ngIf="!modalSpinner && (!countries || countries.length<=0)">No country found</span>
<span *ngIf="modalSpinner" class="loader">
<img src="assets/images/loader.gif" alt="loader">
</span>
</div>
</div>
</div>
</div>
</ng-template>
Ts File
import {NgbModal, ModalDismissReasons} from '@ng-bootstrap/ng-bootstrap';
constructor(
private modalService: NgbModal
) { }
openModal(modalContent){
this.modalService.open(modalContent, { centered: true});
}
You can use just forEach
. No stream at all:
fruits.forEach(fruit -> fruit.setName(fruit.getName() + "s"));
For collections that do not support ForEach
you can use static ForEach
method in Parallel
class:
var options = new ParallelOptions() { MaxDegreeOfParallelism = 1 };
Parallel.ForEach(_your_collection_, options, x => x._Your_Method_());
Try this:
string.Equals(a, b, StringComparison.CurrentCultureIgnoreCase);
The better option would be to just use the resource returned array as an array, meaning :
getResources().getStringArray(R.array.your_array)[position]
This is a shortcut approach of above mentioned approaches but does the work in the fashion you want. Otherwise android doesnt provides direct XML indexing for xml based arrays.
I agree with @aaronasterling's answer. However, if you want a non-binary string that you can cast into an int, then you can use the canonical algorithm:
def decToBin(n):
if n==0: return ''
else:
return decToBin(n/2) + str(n%2)
Here are some methods that may help others, though they aren't really services as much as they may be described as "methods that may, after some torture of effort or logic, lead to a claim of on-demand access to Mac OS X" (no doubt I should patent that phrase).
Fundamentally, I am inclined to believe that on-demand (per-hour) hosting does not exist, and @Erik has given information for the shortest feasible services, i.e. monthly hosting.
It seems that one may use EC2 itself, but install OS X on the instance through a lot of elbow grease.
Where this gets tricky is I'm not sure if this will work for a cluster compute instance. In fact, I think this is likely to be a royal pain. A similar approach may work for Rackspace or other cloud services.
I found only this site claiming on-demand Mac hosting, with a Mac Mini. It doesn't look particularly accurate: it offers free on-demand access to a Mini if one pays for a month of bandwidth. That's like free bandwidth if one rents a Mini for a month. That's not really how "on-demand" works.
Update 1: In the end, it seems that nobody offers a comparable service. An outfit called Media Temple claims they will offer the first virtual servers using Parallels, OS X Leopard, and some other stuff (in other words, I wonder if there is some caveat that makes them unique, but, without that caveat, someone else may have a usable offering).
After this search, I think that a counterpart to EC2 does not exist for the OS X operating system. It is extraordinarily unlikely that one would exist, offer a scalable solution, and yet be very difficult to find. One could set it up internally, but there's no reseller/vendor offering on-demand, hourly virtual servers. This may be disappointing, but not surprising - apparently iCloud is running on Amazon and Microsoft systems.
del /s /q c:\where ever the file is\*
rmdir /s /q c:\where ever the file is\
mkdir c:\where ever the file is\
Worth mentioning Java 8 approach, using BiConsumer
and lambda functions:
BiConsumer<TypeKey, TypeValue> consumer = (o1, o2) ->
System.out.println(o1 + ", " + o2);
example.forEach(consumer);
Assuming that you've overridden toString
method of the two types if needed.
It's not possible to configure an IIS managed handler to run in classic mode. You should be running IIS in integrated mode if you want to do that.
You can learn more about modules, handlers and IIS modes in the following blog post:
IIS 7.0, ASP.NET, pipelines, modules, handlers, and preconditions
For handlers, if you set preCondition="integratedMode" in the mapping, the handler will only run in integrated mode. On the other hand, if you set preCondition="classicMode" the handler will only run in classic mode. And if you omit both of these, the handler can run in both modes, although this is not possible for a managed handler.
You can use XMLHttpRequest, fetch API, ...
If you want to use XMLHttpRequest you can do the following
var xhr = new XMLHttpRequest();
xhr.open("POST", url, true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify({
name: "Deska",
email: "[email protected]",
phone: "342234553"
}));
xhr.onload = function() {
var data = JSON.parse(this.responseText);
console.log(data);
};
Or if you want to use fetch API
fetch(url, {
method:"POST",
body: JSON.stringify({
name: "Deska",
email: "[email protected]",
phone: "342234553"
})
})
.then(result => {
// do something with the result
console.log("Completed with result:", result);
});
Showing gifs need two things
1- Use this syntax as in these examples
![Alt Text](https://media.giphy.com/media/vFKqnCdLPNOKc/giphy.gif)
Yields:
2- The image url must end with gif
3- For posterity: if the .gif link above ever goes bad, you will not see the image and instead see the alt-text and URL, like this:
4- for resizing the gif you can use this syntax as in this Github tutorial link
<img src="https://media.giphy.com/media/vFKqnCdLPNOKc/giphy.gif" width="40" height="40" />
Yields:
I imagine this forum posting, which I quote fully below, should answer the question.
Inside a procedure, function, or trigger definition, or in a dynamic SQL statement (embedded in a host program):
BEGIN ATOMIC
DECLARE example VARCHAR(15) ;
SET example = 'welcome' ;
SELECT *
FROM tablename
WHERE column1 = example ;
END
or (in any environment):
WITH t(example) AS (VALUES('welcome'))
SELECT *
FROM tablename, t
WHERE column1 = example
or (although this is probably not what you want, since the variable needs to be created just once, but can be used thereafter by everybody although its content will be private on a per-user basis):
CREATE VARIABLE example VARCHAR(15) ;
SET example = 'welcome' ;
SELECT *
FROM tablename
WHERE column1 = example ;
If you just want to use the built-in crypto provider RijndaelManaged, check out the following help article (it also has a simple code sample):
http://msdn.microsoft.com/en-us/library/system.security.cryptography.rijndaelmanaged.aspx
And just in case you need the sample in a hurry, here it is in all its plagiarized glory:
using System;
using System.IO;
using System.Security.Cryptography;
namespace RijndaelManaged_Example
{
class RijndaelExample
{
public static void Main()
{
try
{
string original = "Here is some data to encrypt!";
// Create a new instance of the RijndaelManaged
// class. This generates a new key and initialization
// vector (IV).
using (RijndaelManaged myRijndael = new RijndaelManaged())
{
myRijndael.GenerateKey();
myRijndael.GenerateIV();
// Encrypt the string to an array of bytes.
byte[] encrypted = EncryptStringToBytes(original, myRijndael.Key, myRijndael.IV);
// Decrypt the bytes to a string.
string roundtrip = DecryptStringFromBytes(encrypted, myRijndael.Key, myRijndael.IV);
//Display the original data and the decrypted data.
Console.WriteLine("Original: {0}", original);
Console.WriteLine("Round Trip: {0}", roundtrip);
}
}
catch (Exception e)
{
Console.WriteLine("Error: {0}", e.Message);
}
}
static byte[] EncryptStringToBytes(string plainText, byte[] Key, byte[] IV)
{
// Check arguments.
if (plainText == null || plainText.Length <= 0)
throw new ArgumentNullException("plainText");
if (Key == null || Key.Length <= 0)
throw new ArgumentNullException("Key");
if (IV == null || IV.Length <= 0)
throw new ArgumentNullException("IV");
byte[] encrypted;
// Create an RijndaelManaged object
// with the specified key and IV.
using (RijndaelManaged rijAlg = new RijndaelManaged())
{
rijAlg.Key = Key;
rijAlg.IV = IV;
// Create a decryptor to perform the stream transform.
ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV);
// Create the streams used for encryption.
using (MemoryStream msEncrypt = new MemoryStream())
{
using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
{
//Write all data to the stream.
swEncrypt.Write(plainText);
}
encrypted = msEncrypt.ToArray();
}
}
}
// Return the encrypted bytes from the memory stream.
return encrypted;
}
static string DecryptStringFromBytes(byte[] cipherText, byte[] Key, byte[] IV)
{
// Check arguments.
if (cipherText == null || cipherText.Length <= 0)
throw new ArgumentNullException("cipherText");
if (Key == null || Key.Length <= 0)
throw new ArgumentNullException("Key");
if (IV == null || IV.Length <= 0)
throw new ArgumentNullException("IV");
// Declare the string used to hold
// the decrypted text.
string plaintext = null;
// Create an RijndaelManaged object
// with the specified key and IV.
using (RijndaelManaged rijAlg = new RijndaelManaged())
{
rijAlg.Key = Key;
rijAlg.IV = IV;
// Create a decrytor to perform the stream transform.
ICryptoTransform decryptor = rijAlg.CreateDecryptor(rijAlg.Key, rijAlg.IV);
// Create the streams used for decryption.
using (MemoryStream msDecrypt = new MemoryStream(cipherText))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
// Read the decrypted bytes from the decrypting stream
// and place them in a string.
plaintext = srDecrypt.ReadToEnd();
}
}
}
}
return plaintext;
}
}
}
Create a copy of executables of same service and paste it on the same path of the existing service and then uninstall.
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<solid
android:color="#ffffffff"/>
<size
android:width="@dimen/shape_circle_width"
android:height="@dimen/shape_circle_height"/>
</shape>
1.add this in your drawable
2.set as background to your button
If you are using ASP.NET Web API 2, the easiest way is to use the ApiController Short-Method. This will result in a BadRequestResult.
return BadRequest("message");
Here are the steps:
It seems you are checking the .project file into the source repository. I would suggest not checking in the .project file so users can have their own version of the file. Also, if you use the subclipse plugin it allows you to check out and configure a source folder as a java project. This process creates the correct .project for you(with the java nature),
HTTP does not place a predefined limit on the length of each header field or on the length of the header section as a whole, as described in Section 2.5. Various ad hoc limitations on individual header field length are found in practice, often depending on the specific field semantics.
HTTP Header values are restricted by server implementations. Http specification doesn't restrict header size.
A server that receives a request header field, or set of fields, larger than it wishes to process MUST respond with an appropriate 4xx (Client Error) status code. Ignoring such header fields would increase the server's vulnerability to request smuggling attacks (Section 9.5).
Most servers will return 413 Entity Too Large
or appropriate 4xx error when this happens.
A client MAY discard or truncate received header fields that are larger than the client wishes to process if the field semantics are such that the dropped value(s) can be safely ignored without changing the message framing or response semantics.
Uncapped HTTP header size keeps the server exposed to attacks and can bring down its capacity to serve organic traffic.
In 2010 it is ctrl +k +d for indentation
This works:
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
Save your text not in a PHP file, but in an ordinary text file called, say, "text.txt"
Then with one simple $text1 = file_get_contents('text.txt');
command have your text with not a single problem.
Note: Disregard this answer, as I must have misunderstood the question.
select *
from Table
where len(ColName) mod 2 = 1
The exact syntax depends on what flavor of SQL you're using.
Adding these two lines fixed this problem for me
"responsive": true,
"bAutoWidth": true
There is now a responsive plugin available: https://datatables.net/extensions/responsive/. However, in my experience I have found that there are still a few bugs. It's still the best solution I've found so far.
There are multiple easy ways.
Just touch web.xml of any webapp.
touch /usr/share/tomcat/webapps/<WEBAPP-NAME>/WEB-INF/web.xml
You can also update a particular jar file in WEB-INF/lib and then touch web.xml, rather than building whole war file and deploying it again.
Delete webapps/YOUR_WEB_APP directory, Tomcat will start deploying war within 5 seconds (assuming your war file still exists in webapps folder).
Generally overwriting war file with new version gets redeployed by tomcat automatically. If not, you can touch web.xml as explained above.
Copy over an already exploded "directory" to your webapps folder
The quintessential example of this is an array of pointers to structs or objects (that are mutable).
A shallow copy copies the array and maintains references to the original objects.
A deep copy will copy (clone) the objects too so they bear no relation to the original. Implicit in this is that the object themselves are deep copied. This is where it gets hard because there's no real way to know if something was deep copied or not.
The copy constructor is used to initilize the new object with the previously created object of the same class. By default compiler wrote a shallow copy. Shallow copy works fine when dynamic memory allocation is not involved because when dynamic memory allocation is involved then both objects will points towards the same memory location in a heap, Therefore to remove this problem we wrote deep copy so both objects have their own copy of attributes in a memory.
In order to read the details with complete examples and explanations you could see the article Constructors and destructors.
The default copy constructor is shallow. You can make your own copy constructors deep or shallow, as appropriate. See C++ Notes: OOP: Copy Constructors.
Move your row before <div class="container marketing">
and wrap it with a new container, because current container width is 1170px (not 100%):
<div class='hero'>
<div class="row">
...
</div>
</div>
CSS:
.hero {
background-color: #2ba6cb;
padding: 0 90px;
}
Yes, see "Loading Page Fragments" on http://api.jquery.com/load/.
In short, you add the selector after the URL. For example:
$('#result').load('ajax/test.html #container');
This is a bad programming practice, and not allowed in C#. It's a bad programming practice because
The details of the grandbase are implementation details of the base; you shouldn't be relying on them. The base class is providing an abstraction overtop of the grandbase; you should be using that abstraction, not building a bypass to avoid it.
To illustrate a specific example of the previous point: if allowed, this pattern would be yet another way of making code susceptible to brittle-base-class failures. Suppose C
derives from B
which derives from A
. Code in C
uses base.base
to call a method of A
. Then the author of B
realizes that they have put too much gear in class B
, and a better approach is to make intermediate class B2
that derives from A
, and B
derives from B2
. After that change, code in C
is calling a method in B2
, not in A
, because C
's author made an assumption that the implementation details of B
, namely, that its direct base class is A
, would never change. Many design decisions in C# are to mitigate the likelihood of various kinds of brittle base failures; the decision to make base.base
illegal entirely prevents this particular flavour of that failure pattern.
You derived from your base because you like what it does and want to reuse and extend it. If you don't like what it does and want to work around it rather than work with it, then why did you derive from it in the first place? Derive from the grandbase yourself if that's the functionality you want to use and extend.
The base might require certain invariants for security or semantic consistency purposes that are maintained by the details of how the base uses the methods of the grandbase. Allowing a derived class of the base to skip the code that maintains those invariants could put the base into an inconsistent, corrupted state.
the first,Using get_encoding_type to get the files type of encode:
import os
from chardet import detect
# get file encoding type
def get_encoding_type(file):
with open(file, 'rb') as f:
rawdata = f.read()
return detect(rawdata)['encoding']
the second, opening the files with the type:
open(current_file, 'r', encoding = get_encoding_type, errors='ignore')
Using $_SERVER['HTTP_REFERER']
The address of the page (if any) which referred the user agent to the current page. This is set by the user agent. Not all user agents will set this, and some provide the ability to modify HTTP_REFERER as a feature. In short, it cannot really be trusted.
if (!empty($_SERVER['HTTP_REFERER'])) {
header("Location: " . $_SERVER['HTTP_REFERER']);
} else {
header("Location: index.php");
}
exit;
This is what I use and it works in Linux environments. I don't think this would work on a Windows machine...
//define canonicalized absolute pathname for the script
if(substr($_SERVER['SCRIPT_NAME'],0,1) == DIRECTORY_SEPARATOR) {
//does the script name start with the directory separator?
//if so, the path is defined from root; may have symbolic references so still use realpath()
$script = realpath($_SERVER['SCRIPT_NAME']);
} else {
//otherwise prefix script name with the current working directory
//and use realpath() to resolve symbolic references
$script = realpath(getcwd() . DIRECTORY_SEPARATOR . $_SERVER['SCRIPT_NAME']);
}
You can access IE8 script console by launching the "Developer Tools" (F12). Click the "Script" tab, then click "Console" on the right.
From within your JavaScript code, you can do any of the following:
<script type="text/javascript">
console.log('some msg');
console.info('information');
console.warn('some warning');
console.error('some error');
console.assert(false, 'YOU FAIL');
</script>
Also, you can clear the Console by calling console.clear()
.
NOTE: It appears you must launch the Developer Tools first then refresh your page for this to work.
Subplot Colorbar
For subplots with scatter, you can trick a colorbar onto your axes by building the "mappable" with the help of a secondary figure and then adding it to your original plot.
As a continuation of the above example:
import numpy as np
import matplotlib.pyplot as plt
x = np.arange(10)
y = x
t = x
fig, (ax1, ax2) = plt.subplots(1, 2)
ax1.scatter(x, y, c=t, cmap='viridis')
ax2.scatter(x, y, c=t, cmap='viridis_r')
# Build your secondary mirror axes:
fig2, (ax3, ax4) = plt.subplots(1, 2)
# Build maps that parallel the color-coded data
# NOTE 1: imshow requires a 2-D array as input
# NOTE 2: You must use the same cmap tag as above for it match
map1 = ax3.imshow(np.stack([t, t]),cmap='viridis')
map2 = ax4.imshow(np.stack([t, t]),cmap='viridis_r')
# Add your maps onto your original figure/axes
fig.colorbar(map1, ax=ax1)
fig.colorbar(map2, ax=ax2)
plt.show()
Note that you will also output a secondary figure that you can ignore.
To calculate MD5 hash of CLOB content field with my desired encoding without implicitly recoding content to AL32UTF8, I've used this code:
create or replace function clob2blob(AClob CLOB) return BLOB is
Result BLOB;
o1 integer;
o2 integer;
c integer;
w integer;
begin
o1 := 1;
o2 := 1;
c := 0;
w := 0;
DBMS_LOB.CreateTemporary(Result, true);
DBMS_LOB.ConvertToBlob(Result, AClob, length(AClob), o1, o2, 0, c, w);
return(Result);
end clob2blob;
/
update my_table t set t.hash = (rawtohex(DBMS_CRYPTO.Hash(clob2blob(t.content),2)));
There is actually an example for this type of issue in the Ant documentation. It makes use of Selectors (mentioned above) and mappers. See last example in http://ant.apache.org/manual/Types/dirset.html :
<dirset id="dirset" dir="${workingdir}">
<present targetdir="${workingdir}">
<mapper type="glob" from="*" to="*/${markerfile}" />
</present>
</dirset>
Selects all directories somewhere under ${workingdir}
which contain a ${markerfile}
.
instead of
self.theTable.tableFooterView = tableFooter;
try
[self.theTable.tableFooterView addSubview:tableFooter];
One big advantage of MATLAB over R is the quality of MATLAB documentation. R, being open source, suffers in this respect, a feature common to many open source projects.
R is, however, a very useful environment and language. It is widely used in the bioinformatics community and has many packages useful in this domain.
An alternative to R is Octave (http://www.gnu.org/software/octave/) which is very similar to MATLAB, it can run MATLAB scripts.
margin: auto
works "perfectly" with flexbox i.e. it allows to center item vertically and horizontally.
html, body {
height: 100%;
max-height: 100%;
}
.flex-container {
display: flex;
height: 100%;
background-color: green;
}
.container {
display: flex;
margin: auto;
}
_x000D_
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS</title>
</head>
<body>
<div class="flex-container">
<div class="container">
<div class="row">
<span class="flex-item">1</span>
</div>
<div class="row">
<span class="flex-item">2</span>
</div>
<div class="row">
<span class="flex-item">3</span>
</div>
<div class="row">
<span class="flex-item">4</span>
</div>
</div>
</div>
</body>
</html>
_x000D_
You can have both formats as an argument to the function date():
date("d-m-Y H:i:s")
Check the manual for more info : http://php.net/manual/en/function.date.php
As pointed out by @ThomasVdBerge to display minutes you need the 'i' character
Applying the text-align:center
style to an element containing elements will center those elements.
<div id="method-one" style="text-align:center">
CSS `text-align:center`
</div>
Thomas Shields mentions this method
Applying the margin:0 auto
style to a block element will center it within the element it is in.
<div id="method-two" style="background-color:green">
<div style="margin:0 auto;width:50%;background-color:lightblue">
CSS `margin:0 auto` to have left and right margin set to center a block element within another element.
</div>
</div>
user1468562 mentions this method
My original answer was that you can use the <center></center>
tag. To do this, just place the content you want centered between the tags. As of HTML4, this tag has been deprecated, though. <center>
is still technically supported today (9 years later at the time of updating this), but I'd recommend the CSS alternatives I've included above.
<h3>Method 3</h1>
<div id="method-three">
<center>Center tag (not recommended and deprecated in HTML4)</center>
</div>
You can see these three code samples in action in this jsfiddle.
I decided I should revise this answer as the previous one I gave was outdated. It was already deprecated when I suggested it as a solution and that's all the more reason to avoid it now 9 years later.
If you are using a command to just call curl like that, you can do the same thing in Python with subprocess
. Example:
subprocess.call(['curl', '-i', '-H', '"Accept: application/xml"', '-u', 'login:key', '"https://app.streamsend.com/emails"'])
Or you could try PycURL if you want to have it as a more structured api like what PHP has.
do it simply
public class Test{
public Test(){
design();
}//end Test()
public void design(){
JFame f = new JFrame();
f.setSize(int w, int h);
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
f.setVisible(true);
JPanel p = new JPanel();
f.getContentPane().add(p);
}
public static void main(String[] args){
EventQueue.invokeLater(new Runnable(){
public void run(){
try{
new Test();
}catch(Exception e){
e.printStackTrace();
}
}
);
}
}
I had a similar problem and I tried multiple solution. I solved it implementing 2 considerations.
dangerouslySetInnerHtml
to embed the <video>
code. For example:<div dangerouslySetInnerHTML={{ __html: `
<video class="video-js" playsinline autoplay loop muted>
<source src="../video_path.mp4" type="video/mp4"/>
</video>`}}
/>
Also, thanks to @boltcoder for his guide: Autoplay muted HTML5 video using React on mobile (Safari / iOS 10+)
actually this depends on what DBMS you are using but in regular SQL convert(varchar,DateColumn,101)
will change the DATETIME format to date (one day)
so:
SELECT
sum(amount)
FROM
sales
GROUP BY
convert(varchar,created,101)
the magix number 101
is what date format it is converted to
The simplest way is to add android:background="#FFFFFF"
to the main node in the layout.xml or /res/layout/activity_main.xml
:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
android:textSize="20sp"
android:background="#FFFFFF">
</TextView>
char source[1000000];
FILE *fp = fopen("TheFile.txt", "r");
if(fp != NULL)
{
while((symbol = getc(fp)) != EOF)
{
strcat(source, &symbol);
}
fclose(fp);
}
There are quite a few things wrong with this code:
sizeof(source)
, this is prone to buffer overflows.The
strcat()
function appends a copy of the null-terminated string s2 to the end of the null-terminated string s1, then add a terminating `\0'.
You are appending a character (not a NUL-terminated string!) to a string that may or may not be NUL-terminated. The only time I can imagine this working according to the man-page description is if every character in the file is NUL-terminated, in which case this would be rather pointless. So yes, this is most definitely a terrible abuse of strcat()
.
The following are two alternatives to consider using instead.
If you know the maximum buffer size ahead of time:
#include <stdio.h>
#define MAXBUFLEN 1000000
char source[MAXBUFLEN + 1];
FILE *fp = fopen("foo.txt", "r");
if (fp != NULL) {
size_t newLen = fread(source, sizeof(char), MAXBUFLEN, fp);
if ( ferror( fp ) != 0 ) {
fputs("Error reading file", stderr);
} else {
source[newLen++] = '\0'; /* Just to be safe. */
}
fclose(fp);
}
Or, if you do not:
#include <stdio.h>
#include <stdlib.h>
char *source = NULL;
FILE *fp = fopen("foo.txt", "r");
if (fp != NULL) {
/* Go to the end of the file. */
if (fseek(fp, 0L, SEEK_END) == 0) {
/* Get the size of the file. */
long bufsize = ftell(fp);
if (bufsize == -1) { /* Error */ }
/* Allocate our buffer to that size. */
source = malloc(sizeof(char) * (bufsize + 1));
/* Go back to the start of the file. */
if (fseek(fp, 0L, SEEK_SET) != 0) { /* Error */ }
/* Read the entire file into memory. */
size_t newLen = fread(source, sizeof(char), bufsize, fp);
if ( ferror( fp ) != 0 ) {
fputs("Error reading file", stderr);
} else {
source[newLen++] = '\0'; /* Just to be safe. */
}
}
fclose(fp);
}
free(source); /* Don't forget to call free() later! */
try this.
<Route exact path="/details/:id" render={(props)=>{return(
<DetailsPage id={props.match.params.id}/>)
}} />
In details page try this...
this.props.id
I did some speed test. Lets say that if the string is likely to be a number the try/except strategy is the fastest possible.If the string is not likely to be a number and you are interested in Integer check, it worths to do some test (isdigit plus heading '-'). If you are interested to check float number, you have to use the try/except code whitout escape.
package com.beans;
public class Flower{
.......
}
packages :=> com.beans,
java class Name:=> Flower.java,
Folder structure (assuming):=> C:\com\beans\Flower.*(both .java/.class exist here)
then there are two ways of executing it:
1. Goto top Folder (here its C:\>),
then : C:> java com.beans.Flower
2. Executing from innermost folder "beans" here (C:\com\beans:>),
then: C:\com\beans:> java -cp ./../.. com.beans.Flower
You can somewhat think about it as array of object vs. array of references.
[SKSpriteNode]
must contain actual objects[SKSpriteNode?]
can contain either references to objects, or nil
Examples
Creating an array with 64 default SKSpriteNode
:
var sprites = [SKSpriteNode](repeatElement(SKSpriteNode(texture: nil),
count: 64))
Creating an array with 64 empty slots (a.k.a optionals):
var optionalSprites = [SKSpriteNode?](repeatElement(nil,
count: 64))
Converting an array of optionals into an array of objects (collapsing [SKSpriteNode?]
into [SKSpriteNode]
):
let flatSprites = optionalSprites.flatMap { $0 }
The count
of the resulting flatSprites
depends on the count of objects in optionalSprites
: empty optionals will be ignored, i.e. skipped.
For a correct implementation, you need to change a series of things.
Database (immediately after the connection):
mysql_query("SET NAMES utf8");
// Meta tag HTML (probably it's already set):
meta charset="utf-8"
header php (before any output of the HTML):
header('Content-Type: text/html; charset=utf-8')
table-rows-charset (for each row):
utf8_unicode_ci
In my case, there was no string on which i was calling appendChild
, the object i was passing on appendChild
argument was wrong, it was an array and i had pass an element object, so i used divel.appendChild(childel[0])
instead of divel.appendChild(childel)
and it worked. Hope it help someone.
You can access the id after calling the persist method of the entity manager.
$widgetEntity = new WidgetEntity();
$entityManager->persist($widgetEntity);
$entityManager->flush();
$widgetEntity->getId();
You do need to flush in order to get this id.
Syntax Error Fix: Added semi-colon after $entityManager->flush() is called.
1) sys.path is a list.
2) The problem is sometimes the sys.path is not your virtualenv.path and you want to use pylint in your virtualenv
3) So like said, use init-hook (pay attention in ' and " the parse of pylint is strict)
[Master]
init-hook='sys.path = ["/path/myapps/bin/", "/path/to/myapps/lib/python3.3/site-packages/", ... many paths here])'
or
[Master]
init-hook='sys.path = list(); sys.path.append("/path/to/foo")'
.. and
pylint --rcfile /path/to/pylintrc /path/to/module.py
Bootstrap-theme.css is the additional CSS file, which is optional for you to use. It gives 3D effects on the buttons and some other elements.
I collected several prime number sieves over time. The fastest on my computer is this:
from time import time
# 175 ms for all the primes up to the value 10**6
def primes_sieve(limit):
a = [True] * limit
a[0] = a[1] = False
#a[2] = True
for n in xrange(4, limit, 2):
a[n] = False
root_limit = int(limit**.5)+1
for i in xrange(3,root_limit):
if a[i]:
for n in xrange(i*i, limit, 2*i):
a[n] = False
return a
LIMIT = 10**6
s=time()
primes = primes_sieve(LIMIT)
print time()-s
The simplest solution is :
listView.setTranscriptMode(ListView.TRANSCRIPT_MODE_ALWAYS_SCROLL);
listView.setStackFromBottom(true);
I think you need something a bit more generic. Try this:
public static System.Boolean IsNumeric (System.Object Expression)
{
if(Expression == null || Expression is DateTime)
return false;
if(Expression is Int16 || Expression is Int32 || Expression is Int64 || Expression is Decimal || Expression is Single || Expression is Double || Expression is Boolean)
return true;
try
{
if(Expression is string)
Double.Parse(Expression as string);
else
Double.Parse(Expression.ToString());
return true;
} catch {} // just dismiss errors but return false
return false;
}
}
Hope it helps!
select count(1) into existence
from sales where sales_type = 'Accessories' and rownum=1;
Oracle plan says that it costs 1 if seles_type column is indexed.
Definitely a late answer to this question. One possibility is to use the ListIterator in a for loop. It's not as clean as colon-syntax, but it works.
List<String> exampleList = new ArrayList<>();
exampleList.add("One");
exampleList.add("Two");
exampleList.add("Three");
//Forward iteration
for (String currentString : exampleList) {
System.out.println(currentString);
}
//Reverse iteration
for (ListIterator<String> itr = exampleList.listIterator(exampleList.size()); itr.hasPrevious(); /*no-op*/ ) {
String currentString = itr.previous();
System.out.println(currentString);
}
Credit for the ListIterator syntax goes to "Ways to iterate over a list in Java"
To delete all stashes older than 40 days, use:
git reflog expire --expire-unreachable=40.days refs/stash
Add --dry-run
to see which stashes are deleted.
See https://stackoverflow.com/a/44829516/946850 for an explanation and much more detail.
The simplest way is create a static folder inside the main project folder. Static folder containing .css files.
main folder
/Main Folder
/Main Folder/templates/foo.html
/Main Folder/static/foo.css
/Main Folder/application.py(flask script)
Image of main folder containing static and templates folders and flask script
flask
from flask import Flask, render_template
app = Flask(__name__)
@app.route("/")
def login():
return render_template("login.html")
html (layout)
<!DOCTYPE html>
<html>
<head>
<title>Project(1)</title>
<link rel="stylesheet" href="/static/styles.css">
</head>
<body>
<header>
<div class="container">
<nav>
<a class="title" href="">Kamook</a>
<a class="text" href="">Sign Up</a>
<a class="text" href="">Log In</a>
</nav>
</div>
</header>
{% block body %}
{% endblock %}
</body>
</html>
html
{% extends "layout.html" %}
{% block body %}
<div class="col">
<input type="text" name="username" placeholder="Username" required>
<input type="password" name="password" placeholder="Password" required>
<input type="submit" value="Login">
</div>
{% endblock %}
Is it possible to use a
.netrc
file on Windows?
Yes: You must:
%HOME%
(pre-Git 2.0, no longer needed with Git 2.0+)_netrc
file in %HOME%
If you are using Windows 7/10, in a CMD
session, type:
setx HOME %USERPROFILE%
and the %HOME%
will be set to 'C:\Users\"username"
'.
Go that that folder (cd %HOME%
) and make a file called '_netrc
'
Note: Again, for Windows, you need a '_netrc
' file, not a '.netrc
' file.
Its content is quite standard (Replace the <examples>
with your values):
machine <hostname1>
login <login1>
password <password1>
machine <hostname2>
login <login2>
password <password2>
Luke mentions in the comments:
Using the latest version of msysgit on Windows 7, I did not need to set the
HOME
environment variable. The_netrc
file alone did the trick.
This is indeed what I mentioned in "Trying to “install
” github, .ssh
dir not there":
git-cmd.bat
included in msysgit does set the %HOME%
environment variable:
@if not exist "%HOME%" @set HOME=%HOMEDRIVE%%HOMEPATH%
@if not exist "%HOME%" @set HOME=%USERPROFILE%
??? believes in the comments that "it seems that it won't work for http protocol"
However, I answered that netrc
is used by curl
, and works for HTTP protocol, as shown in this example (look for 'netrc
' in the page): . Also used with HTTP protocol here: "_netrc
/.netrc
alternative to cURL
".
A common trap with with netrc
support on Windows is that git will bypass using it if an origin https url specifies a user name.
For example, if your .git/config
file contains:
[remote "origin"] fetch = +refs/heads/*:refs/remotes/origin/* url = https://[email protected]/p/my-project/
Git will not resolve your credentials via _netrc
, to fix this remove your username, like so:
[remote "origin"] fetch = +refs/heads/*:refs/remotes/origin/* url = https://code.google.com/p/my-project/
Alternative solution: With git version 1.7.9+ (January 2012): This answer from Mark Longair details the credential cache mechanism which also allows you to not store your password in plain text as shown below.
With Git 1.8.3 (April 2013):
You now can use an encrypted .netrc (with gpg
).
On Windows: %HOME%/_netrc
(_
, not '.
')
A new read-only credential helper (in
contrib/
) to interact with the.netrc/.authinfo
files has been added.
That script would allow you to use gpg-encrypted netrc files, avoiding the issue of having your credentials stored in a plain text file.
Files with the
.gpg
extension will be decrypted by GPG before parsing.
Multiple-f
arguments are OK. They are processed in order, and the first matching entry found is returned via the credential helper protocol.When no
-f
option is given,.authinfo.gpg
,.netrc.gpg
,.authinfo
, and.netrc
files in your home directory are used in this order.
To enable this credential helper:
git config credential.helper '$shortname -f AUTHFILE1 -f AUTHFILE2'
(Note that Git will prepend "
git-credential-
" to the helper name and look for it in the path.)
# and if you want lots of debugging info:
git config credential.helper '$shortname -f AUTHFILE -d'
#or to see the files opened and data found:
git config credential.helper '$shortname -f AUTHFILE -v'
See a full example at "Is there a way to skip password typing when using https:// github
"
With Git 2.18+ (June 2018), you now can customize the GPG program used to decrypt the encrypted .netrc
file.
See commit 786ef50, commit f07eeed (12 May 2018) by Luis Marsano (``).
(Merged by Junio C Hamano -- gitster
-- in commit 017b7c5, 30 May 2018)
git-credential-netrc
: acceptgpg
option
git-credential-netrc
was hardcoded to decrypt with 'gpg
' regardless of the gpg.program option.
This is a problem on distributions like Debian that call modern GnuPG something else, like 'gpg2
'
You could also use XPCOM
, say in XUL
based apps like Firefox, Thunderbird or Komodo.
Sparx's Enterprise Architect performs round-tripping of Python source. They have a free time-limited trial edition.
You have no need to do your User
class being IDisposable
since the class doesn't acquire any non-managed resources (file, database connection, etc.). Usually, we mark classes as
IDisposable
if they have at least one IDisposable
field or/and property.
When implementing IDisposable
, better put it according Microsoft typical scheme:
public class User: IDisposable {
...
protected virtual void Dispose(Boolean disposing) {
if (disposing) {
// There's no need to set zero empty values to fields
// id = 0;
// name = String.Empty;
// pass = String.Empty;
//TODO: free your true resources here (usually IDisposable fields)
}
}
public void Dispose() {
Dispose(true);
GC.SuppressFinalize(this);
}
}
In a Object Relational Mapping context, every object needs to have a unique identifier. You use the @Id
annotation to specify the primary key of an entity.
The @GeneratedValue
annotation is used to specify how the primary key should be generated. In your example you are using an Identity
strategy which
Indicates that the persistence provider must assign primary keys for the entity using a database identity column.
There are other strategies, you can see more here.
For the sake of anyone also using visual studio from a windows environment:
I realized that I could see my module installed when i ran pip install
py pip install [moduleName]
py pip list
However debugging in visual studio was getting "module not found". Oddly, i was successfully running import [moduleName]
when i ran the interpreter in powershell.
Reason:
visual studio was using the wrong interpreter at:
C:\Users\[username]\AppData\Local\Programs\Python\Python37\
What I REALLY wanted was visual studio to use the virtualenv that i setup for my project. To do this, right click Python Environments in "solution explorer", select Add Virtual Environment..., and then select the folder where you created your virtual environment. Then, under project settings, under the General tab, select your virtual environment in the dropdown.
Now visual studio should be using the same interpreter and everything should play nice!
As a workaround, you could store a bundle with the data you want to maintain in the Intent you use to start activity A.
Intent intent = new Intent(this, ActivityA.class);
intent.putExtra("bundle", theBundledData);
startActivity(intent);
Activity A would have to pass this back to Activity B. You would retrieve the intent in Activity B's onCreate method.
Intent intent = getIntent();
Bundle intentBundle;
if (intent != null)
intentBundle = intent.getBundleExtra("bundle");
// Do something with the data.
Another idea is to create a repository class to store activity state and have each of your activities reference that class (possible using a singleton structure.) Though, doing so is probably more trouble than it's worth.
I solve this problem with this code in NugetPackageConsole.and it works.The problem was in the version. i thikn it will help others.
Just Check your webconfig file and remove this code :-
<dependentAssembly>
<assemblyIdentity name="itextsharp" publicKeyToken="8354ae6d2174ddca" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.5.13.0" newVersion="5.5.13.0" />
</dependentAssembly>
A clean and functional solution
const combineFilters = (...filters) => (item) => {
return filters.map((filter) => filter(item)).every((x) => x === true);
};
then you use it like so:
const filteredArray = arr.filter(combineFilters(filterFunc1, filterFunc2));
and filterFunc1 for example might look like this:
const filterFunc1 = (item) => {
return item === 1 ? true : false;
};
Match it against a regular expression.
c.f. http://forums.mysql.com/read.php?60,1907,38488#msg-38488 as quoted below:
Re: IsNumeric() clause in MySQL??
Posted by: kevinclark ()
Date: August 08, 2005 01:01PM
I agree. Here is a function I created for MySQL 5:
CREATE FUNCTION IsNumeric (sIn varchar(1024)) RETURNS tinyint
RETURN sIn REGEXP '^(-|\\+){0,1}([0-9]+\\.[0-9]*|[0-9]*\\.[0-9]+|[0-9]+)$';
This allows for an optional plus/minus sign at the beginning, one optional decimal point, and the rest numeric digits.